RIO DE JANEIRO -- Military police in Rio de Janeiro are stepping up security at the Olympics after a bus carrying journalists had two of its windows shattered by a projectile and a bullet flew into the stables area of the equestrian venue.Two large windows on the media bus were shattered Tuesday by what Rio organizers said was a rock. But a passenger disputed the account, saying she was sure it was gunfire. There were no serious injuries.Security has been a major concern surrounding the Olympics as Rio is plagued by rampant crime, including frequent murders, gun battles and muggings. Police near the Olympic beach volleyball venue in Copacabana found body parts on the shore last month, and an off-duty bodyguard for Rios mayor was shot to death around the same time in an apparent mugging. Adding to the anxiety is terrorism fears about Islamic State.Rio is deploying about 85,000 soldiers and police to secure the games, twice as many as London did four years ago. Soldiers in military fatigues and carrying guns have been a common sight around Olympic venues.Security was visibly increased overnight on a media bus route toward a womens basketball arena, with three military vehicles and more troops holding guns along the way.The equestrian venue has had two brushes with stray gunfire since the games started. As a result, officials are adding more security at the venue.A bullet flew through the roof of a media tent at the Olympic Equestrian Center on Saturday. Officials said it had been fired from a hillside slum, and that the intended target was probably a security camera on a blimp.A second bullet hit Wednesday near the stables around the same time investigators were arresting someone in the slum in connection with the first shooting. No one was injured in either episode.I can guarantee your total safety, said Gen. Luiz Ramos, chief commander for the first division of the Brazilian army. We have reinforced security systems ... to provide more security.The entire competition venue is situated on military land and gunshots could be clearly heard throughout the day during the dressage competition. Riders said they and the horses were not bothered by the noise, but Ramos said authorities ordered a halt to the training exercises.Newton de Oliveira, an independent security expert with no ties to the organizers, said the fact remains that Rio is still a violent city despite the beefed-up patrols.The level of violence is the same despite the deployment of forces, he said. You can see that areas downtown and near the beaches -- the security forces have made crime drop some, but the city in general is just as dangerous.Passenger Lee Michaelson described a panicked scene on the media bus as the glass shattered and people ducked for cover. Michaelson insisted she heard gunshots.I know what a gun sounds like, said Michaelson, who identified herself as a former Air Force officer covering the games for a womens basketball website. It was the sound before I ever saw the glass (shatter) or anything.Rio police were adamant that it wasnt gunfire, and they expressed confidence in their ability to get to the bottom of what happened.There were no shots, the forensics were made on the bus, I have pictures and I can show them, said Rio police Investigator Carolina Salomao. If there were a shot it would have gone through. There was not that so that theory has been completely discredited.---AP writer Adriana Gomez Licon contributed to this report.---Stephen Wade on Twitter: http://twitter.com/StephenWadeAP .His work can be found at http://bigstory.ap.org/content/stephen-wadeNike SB Canada Online Store . -- Linebacker Myles Jack ran for four touchdowns, defensive end Cassius Marsh caught a scoring pass, and No. Nike SB Canada Sale . 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Gonzalez has a six-week window before position players have their first workout at spring training in Arizona.Ulster climbed above Munster into fourth place in the Guinness PRO12 table after defeating leaders Connacht 18-10 on Friday night. The hosts took control of the contest in the first half, as two penalties from Paddy Jackson and a try from Ireland hooker Rory Best gave them a comfortable lead.Connacht rallied and despite hitting the upright with his first penalty attempt, Shane OLeary sent one between the posts in added time in the opening period to reduce the interval deficit to 11-3. Ulster regained control soon after the restart, though, as winger Craig Gilroys try was converted by Jackson.Connacht refused to buckle and scored their only try of the night through replacement Coalin Blade on 54 minutes, with OLeary duly adding the extras.That proved to be the final score of the night with Ulster remaining top of the pile, a situation that could change if Leinster defeat Munster in a game which can be seen live on Sky Sports.Ulster got things going on the scoreboard when Jackson kicked a fifth-minute penalty after Connacht hooker Tom McCartney was penalised for coming in from the side.Gilroy then picked off a loose pass from Bundee Aki and with the visitors trying to run the ball out of their own 22, Ulster won a penalty at the breakdown which Jackson slotted over.The hosts had to work hard to deny Connacht after several dangerous sorties near their line before they began to cause problems of their own again.A penalty given away by Connacht back-row John Muldoon saw Jackson put the ball in the corner and from Franco van der Merwes take, the home side mauled their way over with Best claiming the touchdown, but Jackson failed to convert as his kick hit the post.OLeary also found the upright with a 39th-minute penalty from an Ulster scrum but the fly-half made no mistake with his next shot to close the home sides leadd to eight points at the break.dddddddddddd Skipper Rory Best scored Ulsters opening try Gilroy was on hand to extend Ulsters lead in the second half, however, with the winger keeping an OLeary touch-finder off a penalty in play.Peter Browne took control and then Jacksons pass to Payne led to the full-back off-loading to put Gilroy in at the corner.Jackson converted to put the home side 18-3 in front but then had Andrew Trimble yellow-carded for an intentional knock-on.Connacht, now releasing their bench, then worked substitute Blade over for a well-worked score with the scrum-half scoring off his first touch courtesy of Eoin McKeon and Muldoon.OLearys conversion narrowed it to 18-10 just before Trimble came back. Sky Live: Leinster v Munster Johnny Sexton and Conor Murray will be on opposing sides when Leinster face Munster Ulster looked to kill the game off and after being encamped in Connachts 22, Best was held up over the line in the 65th minute before departing for treatment having clashed heads with Matt Healy.OLeary was subsequently shown yellow for a high tackle on Gilroy 10 minutes from time and was quickly followed by substitute flanker Sean OBrien for interfering with a pass two minutes later.But despite being reduced to 13 men, Connacht resisted Ulsters surges towards their line as the clock ticked down.Watch Leinster v Munster on Saturday. Coverage begins on Sky Sports 3 HD at 5pm. ' ' '