(CNN) -- Two alleged U.S. drone attacks on Thursday left six suspected militants dead on the border of Afghanistan and Pakistan, officials told CNN.
In the first attack, a high-ranking member of the Haqqani network was reported killed.
"It's been confirmed that Janbaz Zadran, also known as Jamil, was killed earlier today in North Waziristan, Pakistan," a senior Obama administration official in Washington told CNN. The official called him "the most senior Haqqani leader in Pakistan to be taken off the battlefield."
Janbaz played a central role in helping the Haqqani network attack U.S. and coalition targets in Kabul and southeastern Afghanistan, the senior administration official said.
Pakistani intelligence sources also confirmed that the man was Zadran, also known as Jamil, and was in charge of communications for the Haqqani network.
The drone in the initial attack fired two missiles at a compound in a village north of Miranshah, the main town in North Waziristan, said Pakistani intelligence officials.
A source in Pakistan identified a victim as Jalil, and said he was in charge of communications for the network and a close relative of Sirajuddin Haqqani. Two U.S. officials differed on whether Jalil and Jamil are the same person.
Sirajuddin Haqqani is the leader of the Afghan Taliban, a group that targets U.S. forces and their allies.
In the second attack, which occurred three hours later, three suspected militants were killed when a Predator drone fired two missiles at a compound in Zeba Pahar, a mountain in South Waziristan, part of the semi-autonomous tribal district of northwest Pakistan, intelligence officials said. The compound on the border was used by militants to fire missiles at NATO and Afghan National Army forces, officials said.
CNN's Jesssica Yellin contributed to this story.