Gunmen kidnapped a Polish engineer in Attock on Sunday, shooting dead his two drivers and a security guard during the abduction in the latest violence to hit the nation, officials said. Poland's foreign ministry confirmed the kidnapping, while the engineer's company said he was ambushed as he and colleagues were travelling to oil plants northeast of Islamabad to carry out some tests. Pakistan police said a search was underway after the gunmen fled with the engineer in their own vehicle near the village of Pind Sultani in Attock district, about 110 kilometres (68 miles) from Islamabad.