A Pakistani government helicopter crash-landed in Taliban-held territory in neighboring Afghanistan on Thursday and all passengers and crew are feared to have been captured by the insurgents, officials said.

The helicopter went down in Logar province, close to the Afghan-Pakistan border — an increasingly lawless area since a two-year Pakistani military operation pushed many Taliban and allied fighters farther into Afghanistan.

"Those detained by the Taliban are Pakistanis," Sameem Saleh, spokesman for Logar's governor, said. "The chopper was not shot but made the landing because of technical failure."