BERLIN, Oct 22, 2007(Reuters) - German police had to round up a cluster of crayfish after the crustaceans broke out of an Asian food shop and scuttled down the street, police in the southwestern city of Stuttgart said on Monday.

A surprised pedestrian notified authorities after seeing the crayfish crawling down the road early on Sunday, a local police spokeswoman said.

They had escaped by squeezing through gaps in the grating on their tanks and leaving by the store's front door, which had been left ajar.