President Barack Obama and his national security advisers are considering expanding the covert U.S. war in Pakistan far beyond the tribal areas near the border with Afghanistan, the New York Times reported on Tuesday.

Two high-level reports on Pakistan and Afghanistan that have been forwarded to the White House in recent weeks have called for broadening the target area to reach the Taliban and other insurgent groups to a major sanctuary in and around the city of Quetta, the newspaper said on its website, citing senior administration officials.

Missile strikes by Central Intelligence Agency-operated drones have until now been limited to the tribal areas, and never been extended into Baluchistan, a sprawling province under the authority of Pakistan’s central government, and which is next to parts of Afghanistan where recent fighting has been fiercest, the newspaper website said.