From correspondents in Islamabad, Pakistan, 10:01 PM IST

At least seven people were injured as an explosion ripped through a police post Monday on a main highway on the outskirts of Pakistan's eastern city of Lahore, police said.

The check-post was located at an entry point to the city at a six-lane motorway between the federal capital Islamabad and Lahore.

Lahore police chief Pervez Rathore told reporters at the scene that seven people, including three policemen, were seriously injured in the bombing, which was carried out by a suicide bomber who blew himself up as police tried to conduct a search of him.

His colleague also died in the attack.

'Two police officers are in critical condition,' Rathore said, adding the attackers were apparently trying to enter the city for some major attack.

(Staff Writer, © IANS)