A SECURITY alert outside Bushey train station caused traffic mayhem this afternoon (Wednesday).

The incident began when a man carrying a rucksack was apprehended on a 258 bus to Watford.

The bus, travelling from Harrow, was terminated at Bushey station around 4pm.

Police ordered the driver and passengers off the vehicle, before arresting a man, who had been wearing a rucksack.

All houses and businesses within a 500m radius of the station were evacuated, and several roads were closed off.

About 20 squad cars and two ambulances attended the scene.

Police were in the process of leaving the scene at around 6pm.

Were you an eyewitness?

If you have been affected by this incident please contact the Watford Observer newsroom on 01923 216294 or send an email to editor@watfordobserver.co.uk.