Computer stolen from MP Keith Vaz's office

Security at the Houses of Parliament has been questioned following a theft from an office of a senior MP.

A computer and iPad were stolen from the Westminster office of Keith Vaz, chairman of the Commons Home Affairs Select Committee which examines the Government's handling of crime and terrorism.

The incident occurred just days before a major security operation as the Palace of Westminster prepares for the visit of US President Barack Obama.

Labour MP Mr Vaz called for a "more robust approach" to security on the parliamentary estate, particularly ahead of the President's arrival next week.

It is the latest in a string of thefts in Parliament in recent weeks, with laptop computers a favourite target.