Police have closed off roads near MI6 after a suspect package sparked a major security alert. A large area around the Albert Embankment in South London was closed off as well as Vauxhall Bridge near to the security service’s headquarters.

Witnesses said they had seen people fleeing the MI6 building. However, Transport for London, said the incident was now over and roads had reopened.

One of those stuck in traffic chaos was the This Morning host Eamon Holmes, who tweeted a photo of gridlock, tweeting to his 927,000 followers: “Police Officer has just told me a Suspicious package outside an Apt Block in Vauxhall.”

Another witness said: “My building, MI6 and Vauxhall bridge suddenly shut down by the police. Should I be worried?”

A spokesperson for the Metropolitan Police said that the operation had been “stood down” after the package was not found to be suspicious. They said: “Officers are on the scene of a suspicious package in Vauxhall. Local roads are closed in the area and we are not discussing anything further at this stage.”

Britain remains on a high state of alert over the fear of a terrorist attack. The current state of alert is classified as “severe” with members of the public urged to remain vigilant and alert to the danger of terrorism, reporting any suspicious activity to the police. Counter terrorism experts say it is really a question of when, not if Britain is hit by another terrorist attack, following assaults in France and Germany.

The latest scare follows the evacuation of office buildings in Vauxhall, near MI6, earlier this year when a World War Two bomb washed up on the banks of the Thames. The bomb was discovered by a member of the public and MI6 was evacuated as police put a security cordon in place.