Vavuniya, September 9 (NDTV.COM) A bomb hidden with a dead body exploded in north Sri Lanka today, injuring seven people, including three schoolgirls and a policeman, the Defence Ministry said.

The explosion took place near the northern town of Vavuniya when police went to investigate a dead body near an abandoned, three-wheel taxi.

An Associated Press reporter said police were suspicious about the three-wheeler and prevented reporters from going near to take photographs.

The blast took place as the journalists were arguing with police to seek access. (AP)