Gunfire was heard coming from Warner Bros Studios in Leavesden yesterday.

The film studio based in Aerodrome Way has advised police that they will be shooting scenes involving gun fire for the "next few days."

Giles Cooper, press officer at Hertfordshire Constabulary said that the scenes will be filmed "between seven and eight."

Several people took to social media site, Twitter, to say that they had heard gunfire coming from the studio and police confirmed that they were aware that filming was taken place at the Leavesden studio.