Pakistan's Prime Minister Khan in Iran to talk security, ties

Pakistan's Prime Minister Imran Khan arrived in Iran on Sunday to discuss security and regional issues, Iranian state TV reported, a day after Islamabad urged Tehran to act against militants behind killings in Pakistan's Baluchistan province.A new umbrella group representing various insurgent groups operating in Baluchistan claimed responsibility for an attack on Thursday when 14 passengers were killed after being kidnapped from buses in the province, which borders Iran.Pakistani Foreign Ministe