POLICE have been called to a business park in Blackburn.

Eyewitnesses said four police cars and an ambulance are outside the TK Maxx store near Greater Bolton Street.

The eyewitness said there was blood seen outside the shop.

He said: "I was walking past and I saw lots of police outside the shop.

"There was blood everywhere.

"The site hadn't been closed off yet because I think the police were still getting customers out."

Police had come away from the scene by 6.30pm.