Police in Belfast are investigating a robbery on a cash-in-transit van today during which a security guard was assaulted.
A spokesman for the Police Service of Northern Ireland (PSNI) said the security van was making a delivery to a shop in York Street shortly after 11am.
The staff making the delivery were approached by two men wearing high-visibility jackets, one of them carrying a handgun and the other an iron bar. One of the security men was struck on the head with a handgun and the men made off with a cash security box.
They are believed to have made their escape in an English-registered car, possibly a dark red Vauxhall Vectra.
The PSNI spokesman said it is believed the men were contaminated by fluorescent security dye.
Detectives at Antrim Road are appealing for witnesses.