**There has been a second missile strike by a suspected US drone in as many days in north-west Pakistan, intelligence officials and residents say.**Casualties are feared after six missiles struck a suspected training camp for militants in South Waziristan early on Wednesday, officials said.
At least 12 militants were killed in a similar attack in the area on Tuesday.
The attacks are targeting a stronghold of Pakistan’s top Taliban commander, Baitullah Mehsud, in South Waziristan.
Reports quoting unnamed security official say that between eight and 10 people may have been killed in Wednesday’s attack.
There have been dozens of such strikes since last August, killing hundreds of militants and civilians.
Most of the strikes have taken place in the tribal regions of North and South Waziristan.
The strikes come at a time when the Pakistani government is engaged in operations against the Taliban commander in South Waziristan.
Criticism
Last month, a suspected drone struck twice within hours killing more than 60 people - most of them militants who had gathered for the funeral of those killed in the first strike.
Pakistan has been publicly critical of drone attacks, arguing that they kill civilians and fuel support for the militants.
The US military does not routinely confirm drone attacks but the armed forces and the Central Intelligence Agency operating in Afghanistan are believed to be the only forces capable of deploying drones in the region.
In March, US President Barack Obama said his government would consult Pakistan on drone attacks.