The US has resumed its drones programme in Pakistan, with two strikes on militant strongholds in the North Waziristan tribal region overnight.
Reports say at least 16 suspected militants were killed in the strikes.
It come days after militants attacked Karachi international airport, killing 39 people, including 10 attackers.
Washington agreed to suspend its drones programme in December to allow Islamabad to pursue peace talks with the Pakistani Taliban (TTP).
But pressure has been mounting on the Pakistani authorities to launch a ground offensive on the region amid a breakdown in peace talks.
The two drone strikes took place within hours of each other, striking a compound in a village near Miranshah, the main town in North Waziristan.
The first attack, carried out late on Wednesday night, is said to have killed four ethnic Uzbek militants and two Punjabi Taliban.
The second attack on Thursday morning targeted another 10 suspected militants.
On Wednesday, Uzbek militants of the Islamic Movement of Uzbekistan (IMU) claimed to have carried out the attack on the airport, saying it was in retaliation for military air strikes.
The group, which is highly-trained and has bases in North Waziristan, has previously carried out large-scale co-ordinated attacks with al-Qaeda and Taliban militants in Pakistan.
Washington uses unmanned drones to carry out strikes on Taliban and al-Qaeda targets in Pakistan’s border region with Afghanistan.
However, US strikes have not taken place since 25 December 2013 in response to calls by Pakistan to halt strikes and enable peace negotiations.
Pakistan launched air strikes against Pakistan’s north-west Khyber region, killing at least 15 militants on Tuesday. BBC
