Surface-to-air missiles could be stationed on the rooftops of an apartment block in east London as part of Britain's air defenses for the Olympics, the country's military confirmed yesterday.

Around 700 people living at the building in Bow - about two miles from London's Olympic Stadium - have been told that the weapons and about 10 troops are likely to be based at the site for around two months.

In a leaflet sent to residents, the Defense Ministry said the venue offered an uncluttered view of the surrounding areas and the entire sky above the Olympic park.

Troops plan to conduct tests next week at the upscale gated apartment complex, to determine if the high-velocity surface-to-air missiles will be stationed on a water tower attached to the building's roof, the ministry said.

Britain has previously confirmed that up to 13,500 troops are being deployed on land, at sea and in the air to help protect the Olympics alongside police and security guards. Defense Secretary Philip Hammond has said Typhoon fighter jets, helicopters, two warships and bomb-disposal experts will be on duty as part of the security operation.

"As announced before Christmas, ground-based air-defense systems could be deployed as part of a multilayered air-security plan for the Olympics, including fast jets and helicopters, which will protect the skies over London during the games," the ministry said in a statement.

"Based on military advice, we have identified a number of sites and, alongside colleagues from the Metropolitan Police, are talking to local authorities and relevant landowners to help minimize the impact of any temporary deployments."

But the ministry insisted that "no final decision" has been made on whether to deploy the system.

Resident Brian Whelan said those who live at the site were wary about the plan.

"From the few people I've spoken to, and the security we have here, they're not happy about it," he said. "I don't think it needs to be here at all."

The leaflet sent to residents insisted there would be no hazard to those living in the building. It said the missile system would be "only authorized for active use following specific orders from the highest levels of government in response to a confirmed and extreme security threat."