ESSEX Police are investigating a robbery at McColls in Defoe Parade, Chadwell St Mary.
Three men entered the shop and demanded money at about 5.10pm yesterday, Monday January 18.
One was armed with a knife. They threatened staff members and ran off with a four figure sum of cash. No one was injured.
The men are described as white and in their early 20s. One was wearing black trousers and a grey body warmer. One wore dark Adidas trousers and a hooded jumper. The third suspect wore dark clothing and a coat which had a white stripe running down both arms and hood.
Witnesses or anyone with information are asked to contact Grays CID on 101.
Alternatively, they can contact Crimestoppers anonymously on 0800 555111 or www.crimestoppers-uk.org.