Police are seeking information about a string of robberies in Bradford.

The four robberies have all involved a group of Asian men in a white Nissan Primera, and all took place on Saturday.

During the first at 8.30pm the car, containing four Asian men, approached two 15-year-old boys in Wibsey Park Avenue. Demands were made for a mobile phone and money but nothing was stolen.

In the second, just after 8.30pm, the same car pulled up alongside an man in Canterbury Avenue where the men threatened violence and stole a phone.

In the third, the same car, believed to now contain five Asian men, approached a group of 15 and 16-year-olds in Beacon Road at around 9.35pm. Again, they made demands for a mobile phone before stealing a phone.

In the fourth, the same car, now containing seven Asian youths, approached a man and woman crossing Great Horton Road at around 9.40pm and stole the 32-year-old woman's handbag.

Two men aged 16 and 20 who were helping police with their inquiries have been released on police bail pending enquiries.

Anyone with information should contact police on 376659.