Security Stepped Up For Start Of Wimbledon

Police have tightened security at Wimbledon amid heightened fears of a terror attack following the events in Tunisia.

Scotland Yard said the changes had been made to policing plans for this year's tournament in south London, with the UK's terror threat level at "severe", meaning an attack is "highly likely".

Extra officers were on patrol - including some in plain clothes - and a "highly mobile" reserve unit was ready to respond to "emerging incidents", the force said.

It comes after last week's terrorist attacks in Tunisia, France and Kuwait, and as the UK prepares to mark the 10th anniversary of the July 7 bombings next week.

Assistant commissioner Mark Rowley, who is the national head of counterterrorist policing, told Sky News: "We are constantly looking at networks across the world and the way that terrorism has changed in the last few years so it's much more connected across the world.

"Over the last year, we've been arresting pretty one person a day in respect of counter-terrorism, whether it's disrupting them for fraud and minor offences ... or whether it's disrupting and taking out big plots."

Home Secretary Theresa May and Foreign Minister Tobias Ellwood travelled to Sousse in Tunisia as the number of Britons thought to have been killed there is expected to rise to at least 30 .

This week London's armed police are to test their response to a Tunisia-style gun rampage on the capital’s streets.

Tennis action on centre court kicked off with defending champion Novak Djokovic's first round match, while 2013 champion Andy Murray will begin his challenge on Tuesday.

The Scot has been handed a tough draw as third seed, and may have to overcome former champions Rafael Nadal, Roger Federer and Djokovic if he is to achieve glory.

The British Association of Tennis Supporters have insisted Murray will have the full support of the Wimbledon crowd despite having voiced his support for Scottish independence in last year's referendum.

Sky Bet is offering odds of 3/1 for a Murray victory at Wimbledon, while number one seed Djokovic is the 11/8 favourite.

In the women's draw, five-time Wimbledon champion Serena Williams is the 7/4 favourite, ahead of defending champion Petra Kvitova at 4/1.