A suspected U.S. drone missile attack has killed two people in Pakistan's North Waziristan tribal region that borders Afghanistan.

Pakistani intelligence officials say the attack took place Thursday and targeted a house in a village north of the region's main town of Miran Shah.

No other details were immediately available.

In neighboring South Waziristan Wednesday, Pakistan's army said its forces reached key Taliban strongholds, as its offensive moves deeper into militant-held territory.

The military said troops captured a "major part" of Sararogha and also entered Ladha, where "intense fighting" was taking place.

A military statement said 30 militants were killed and eight troops wounded in South Waziristan.   

The army's casualty claims could not be independently verified because journalists and aid workers are not allowed in the battle zone.   

Meanwhile, India has strongly denied Pakistani allegations it is helping the Taliban and other insurgents Pakistan's military is battling in South Waziristan.

Pakistani officials say their forces seized Indian-made guns, bombs and medicine in the region.

Indian Foreign Secretary Nirumpama Rao said India wants a stable and peaceful Pakistan.

In other violence Wednesday, officials in the Bajaur tribal agency said militants killed two female teachers in a roadside ambush.

Taliban militants generally oppose education for girls and have carried out bombings, teacher killings and intimidation to keep girls out of schools. 

Some information for this report was provided by Reuters.