LONDON (Reuters) - Police cordoned off roads around the Houses of Parliament in the heart of London on Tuesday in a security alert caused by an abandoned vehicle, Sky News television reported.

A spokesman for London's Metropolitan Police said officers were examining a suspicious vehicle.

"It looks like a false alarm, but we're still assessing it at the moment," he said.

(Reporting by Estelle Shirbon and Michael Holden; editing by Stephen Addison)