The police busted a five-member alleged target killer gang of Muttahida Qaumi Movement-London (MQM-L) here in the metropolis on Saturday. Police said that on a tip-off regarding presence of wanted criminals, operation was conducted in Federal 'B' Area of Karachi. During raid, five members of MQM-L allegedly involved in target killing incidents were arrested. The police also recovered arms from possession of the detainees who were being interrogated after registering cases against them.