Pakistan: Troops end attack on Karachi naval air baseBBC's Aleem Maqbool says the attack was "very coordinated, sophisticated" Pakistani troops have ended a siege by militants who attacked a naval air force base in Karachi, killing at least 16 people - including 10 soldiers. The attackers managed to hold hostage several foreigners at the base, but officials say they were later rescued. The Pakistan Taliban says Sunday's raid was to avenge Osama Bin
