Kamal Hyder, Al Jazeera's correspondent in Islamabad, said that a military operation in Bajaur had made it the scene of heavy fighting and displaced tens of thousands of people from the area.
"[This] caused considerable anger at both the, so called, Taliban in the region for destabilising the region, and the military coming.
"That disillusionment now seems to have turned against the fighters who have been fighting the military."
Hyder said that the locals have been burning the houses of senior commanders who have allied themselves to the Taliban and surrounded the house of Omar.
"There was some desperate attempts by the pro-Taliban elements to try and prevent the destruction of Maulvi Omar's house, but the tribals have said that they will go ahead anyway."
However, Hyder said that Afghan refugees and some Afghan commanders in the area were still attempting to resist the tribal volunteers.
The attacks came a day after opposition fighters fired rockets at the home of a politician in Pakistan's North West Frontier Province, bordering Afghanistan.
Two rockets damaged three homes in the town of Marden on Sunday.
The rockets failed to hit the home of Amir Haider Khan Hoti, the North West Frontier Province's chief minister and the intended target.
No one was injured in the attack. Hoti was said to be in Peshwar, the provincial capital, at the time.
Mian Iftikhar Hussain, the provincial information minister, said: "We expect more such incidents."
"They are not going to be stopped here. We are facing a war-like situation."
The strike followed a number of attacks targeting politicians in the lawless border area.
A suicide bomber detonated a bomb outside the house of a leading pro-government politician last week, killing four people.