Security agencies on Thursday arrested about 50 people suspected for involvement in Wednesday's deadly bomb-and-gun attack in Lahore from different parts of the city and moved them to undisclosed locations for investigation. Intelligence agency sources told Daily Times that about 20 suspects were apprehended from Iqbal Town, Bund Road, hostels in Ichhra and outskirts of the city. The sources said most of the arrested were Afghan nationals. They said the arrests were made on the information extorted from suspects arrested at the blast site. The sources added that it was a prime priority of the investigation to gather information on local supporters of the Taliban and other terrorists.