Terrified security guards were robbed at gunpoint as they delivered cash to a Southend post office.

The security van was ambushed as it delivered money to a post office in Lonsdale Road, at its junction with Central Avenue at 12.30pm on Tuesday.

As one of the guards left the van he was accosted by a man who pushed a handgun into his stomach.

His accomplice then ordered a second guard inside the vehicle to hand out cash bags.

Police say three pouches containing a substantial amount of cash were handed over before then men made off towards Shoebury in a red hatch back car along Central Avenue.

Both men were described as white and one may have been wearing a florescent jacket.

Anyone with information is asked to contact Det Con Paul Bird or anyone else at Southend CID on 01702 431212 or anonymously to Crimestoppers on 0800 555111.