Three suspected militants were killed Friday in the third US drone missile strike in tribal district of North Waziristan in two days, security officials said. The strike hit a village in the Dattakhel region close to North Waziristan's main town Miramshah - the same northwestern area where two strikes hours apart on Thursday killed at least 14 militants and destroyed their hideouts. Islamabad is under growing US pressure to dismantle Islamist extremist networks along its lawless and porous border with Afghanistan. 'The US drone missiles hit a house in the mountains. We have reports of three militants killed and five injured. The house was completely destroyed,' said an intelligence service official based in Miranshah.