Pakistani police have arrested three Taliban militants planning "big terror attacks'' in the financial hub of Karachi. Senior police official, Raja Omar Khittab said the three men, who belong to Tehreek-e-Taliban Pakistan (TTP) were arrested from the Site industrial area during a police encounter on Saturday morning. <br/><br/>He said the three TTP militants were planning big terror attacks in Karachi and were being interrogated. Khittab said that police recovered a huge quantity of explosives, detonators and other equipment from a bomb-making laboratory in the nearby Qaim Khan Colony on the basis of information provided by the rebels. Local intelligence officials confirmed the arrests and said Subhan Ghani, one of the three men, was leader of the trio.