Islamabad, Jun 26 (IANS): One policeman and three suicide bombers were killed in an attack on a police station in Pakistan's Balochistan province on Wednesday.

The attack took place in the morning when three suicide bombers tried to enter the police station in the Loralai city, the media wing of Pakistan's armed forces, Inter-Services Public Relations (ISPR), said in a statement.

While one attacker was shot dead by the police at the entrance to the complex, other two managed to enter the centre, Geo News reported. "In the exchange of fire one suicide bomber (of the remaining two) exploded himself and the other was killed by security forces," the ISPR said.

One policeman was killed and two other officers were wounded in the attack.

A police recruitment centre in the same city was attacked in January claiming 12 lives and wounding 21 others.

Balochistan, the largest and least populated state of Pakistan, has witnessed frequent attacks by separatist groups, armed Islamist forces and organised crime networks, making it one of the nation's most unstable and insecure regions.

In July last year, 149 people were killed in an attack in the province during a poll-related rally. It was one of the worst attacks in the history of the Asian country.