Shortly before 12.55pm, a man wielding a knife approached a vehicle outside a business premises at the Falls Road, west Belfast.

A cash box taken during the incident has since been recovered.

The female driver was uninjured, but left badly shaken, said a police spokesman.

A 24-year-old man, apprehended at the back of Blackstaff Mill, was arrested.

A green vehicle believed to be the getaway car was also recovered at the scene.

"He has been taken to a nearby police station and is currently helping with inquiries," the police spokesman added.

They have appealed for witnesses to come forward.