LONDON (AP) – Golf’s third major tournament of the year is scheduled to start as planned next Thursday at St. Andrews despite four explosions that tore through London during Thursday’s morning rush hour.

“Normal security measures are in place and anything above that will be taken on the advice of the Fife Constabulary,” the Royal and Ancient Club said in a statement. Hunter Mahan, the first-round leader at the John Deere Classic in Illinois who is still trying to qualify for the British Open, said Thursday’s attacks in London wouldn’t keep him from playing in the major. Though it might influence his travel plans.

“The tournament’s in Scotland, so I’d probably have to go through there,” he said. I’d probably try to fly through Glasgow. That’s a crazy thing that happened.”

Australian Mark Hensby already planned to fly through Glasgow and won’t give a second thought to playing.

“If it’s going to happen, it’s going to happen,” he said.

Four years ago, the Sept. 11 terror attacks in the United States forced the cancellation of the Ryder Cup, which had been scheduled to start in England just weeks later.

The biennial tournament was instead played the next year.

Thursday’s attacks left at least 37 people dead and hundreds wounded, but didn’t deter most sports events in Britain from proceeding as usual.

However, an Olympic celebration was called off, as was horse racing at Epsom and functions by a few Premier League soccer teams.

The Scottish Open golf tournament at Loch Lomond in Luss continued without interruption and a one-day cricket match between England and Australia in Leeds started just hours after the explosions.

“I’m sorry and empathetic for what happened,” golfer Phil Mickelson said.

The British Grand Prix also will go ahead as planned. Practice for the auto race is Friday, with qualifying on Saturday and the race Sunday. The British GP has been run every year since Formula One started in 1950.

“Silverstone has a well-established set of security measures in place that have been agreed and planned in detail with police and other agencies,” race organizers said. “

Silverstone is confident that these measures are adequate to ensure the safety of all attending.”

Celebrations were scrapped for London’s winning 2012 Olympic bid.

“It would be completely inappropriate in view of this appalling tragedy,” Olympics Minister Tessa Jowell said.

The evening horse race at Epsom was abandoned hours after officials had promised the schedule would proceed as usual. Course clerk Andrew Cooper cited the “escalating situation in London.”

“We feel it would be inappropriate for us to race,” Cooper said. English Premier League champion Chelsea did not introduce a new player acquisition and canceled a news conference with manager Jose Mourinho, and Arsenal called off a ceremony for its new stadium.

After the sixth inning of the Mets-Nationals game at RFK Stadium on Thursday afternoon, there was a moment of silence for the victims of today’s attacks in London. Nationals spokesman John Dever said the team had been in contact with Major League Baseball security and local law enforcement officials before the game to discuss tightening security.

“We increased some of the security measures here today, but I can’t discuss specifics,” Dever said.

AP-ES-07-07-05 1904EDT