Unknown persons fired a rocket at an army camp in Pakistan's North Waziristan tribal region Thursday, causing damage to a barrack, the private news agency News Network International (NNI) reported.

No one was hurt in the attack at Miranshah, the headquarters of North Waziristan, according to the report.

This was the first attack on an army camp in North Waziristan after the authorities signed a peace agreement with tribal elders in September 2006 to end violence in the region, the NNI report noted.

No group claimed responsibility of the attack.

On Tuesday, some 18 people were killed in clashes between Uzbek militants and local tribesmen in South Waziristan tribal region.

Many al-Qaeda and Taliban fighters sneaked into Pakistan's northwest tribal areas to seek shelter from local tribespeople following the fall of the Afghan Taliban regime in 2001.

The Pakistani government have sent around 80,000 troops to the tribal areas bordering Afghanistan to hunt foreign militants since joining the Washington-led international war on terror in 2001.

Source: Xinhua