Security guards are patrolling taxi ranks to help combat racist attacks on African cabbies.

A survey of ethnic minority taxi drivers showed 80% had experienced racist name-calling or other verbal abuse.

Under a scheme run by Brighton and Hove's Sudanese Coptic Association independent drivers have had radio links and CCTV installed in their cabs to help monitor incidents.

Queues at busy central Brighton cab ranks will have a security guard on Friday and Saturday nights for the next three weeks while the pilot scheme is under way.

The moves are part of a study of the extent of attacks on ethnic minority drivers working in taxis and hackney carriages.

The project is funded by a £9,500 grant from Connected Communities Plus, a group promoting racial equality.

The study is expected to run for another two months.