Pakistani security forces arrested on Saturday an Islamist militant suspect who is wanted for several attacks, and smuggling explosives used in bombings in the country's biggest city, said a security force spokesman. The suspect, Mohammad Rizwan, was a member of the banned Jaish-e-Mohammad militant group, said Captain Fazal Mehmood, a spokesman for Pakistan Rangers. Rizwan was arrested in a shantytown on the outskirts of Karachi after a tip-off, Mehmood said. "Rizwan was affiliated with Jaish-e-Mohammad and was involved in sectarian terrorism. The provincial government had him on their most wanted list," he added. he said that Rizwan had also been involved in smuggling weapons and explosives from the Afghan border to Karachi.