Gunmen have opened fire on a Japanese diplomatic vehicle in southern Pakistan, police have said.
Two Pakistani employees of the Japanese consulate in Karachi were wounded.
Police official Javed Akbar Riaz said the attack may have been motivated by robbery because the employees had stopped by a bank before they were ambushed. The two gunmen were on a motorcycle.
Earlier on Thursday, a suspected US missile strike on a house in north-west Pakistan killed seven alleged militants, intelligence officials said.
It was the third such air strike in 24 hours in the North Waziristan tribal region, which is home to hundreds of Pakistani and foreign Islamist militants, many belonging to or allied with al Qaida and the Taliban.
The region also hosts the Haqqani network, a powerful insurgent group that US officials claim is behind many of the attacks on US and Nato forces just across the border in Afghanistan.
The region is too dangerous for outsiders to visit and independently confirm the attacks, and US officials do not acknowledge firing the missiles, much less discuss who they are targeting.
There have now been at least 20 suspected US missile strikes in Pakistan this month. There were 21 such attacks in September, nearly double the previous monthly record. They are fired by unmanned drones that fly over the region for hours.
The Pakistani Taliban, one of the largest groups in Pakistan's tribal belt, beheaded three people on Thursday in the Mohmand region after accusing them of robbing and kidnapping people posing as militants, local government official Meraj Khan said. The insurgents have gained support in some areas by claiming to dispense quick and fair justice, as well as deterring crime.