Two teenage robbers threatened a 23-year-old cyclist with a knife and stole his wallet and mobile phone.

The incident happened on Monday between 10.15pm and 10.30pm on the cycle track near the Heyford Hill Roundabout on the Eastern Bypass, Oxford.

The attackers were white, about 6ft tall, and wearing blue jeans. One was wearing a yellow T-shirt and the other a dark T-shirt.

Anyone with information should call police on 101.