A bungling robber left a calling card at the scene of an armed robbery in Southampton.

Three men, aged 19, 18 and 16, were arrested after a police manhunt in the Rockaway area on Thursday.

It came after two men reportedly held up a bystander at knifepoint at about 2.30pm.

During the incident, one of the suspects was said to have dropped his phone and his calling card.

The victim is said to have picked up the phone.

According to a police spokesman, the teens targeted a lone man sitting on a wall outside the Port Royal Gas Station, brandishing the weapon and taking cash.

The spokesman said that the assailants “briefly entered the gas station”, but that the premises were not the target.

A member of staff at the gas station confirmed that the victim had entered the station “roughed up from the scuffle” and saying he had been robbed, but holding a phone.

She added: “The mobile phone dropped was said to be owned by one of the culprits.

“He came into the station yelling and screaming to get his phone back.

“I told him to leave, that there are cameras everywhere, and we hit the panic button. The police came and the culprit ran.”

Staff were unfazed by the incident, she said, adding: “We are just trying to keep the peace.”

Anyone with information is urged to call the Criminal Investigation Department on 247-1744.