In Pakistan, at least 18 persons were killed and more than 50 injured when two passenger trains collided near Karachi today. Divisional Superintendent of Railways told reporters that the collision occurred as Zakaria Express struck Fareed Express, which was stationary, between Juma Goth and Landhi Railway Station. It is reported that Railway officials gave a green signal to the train coming from behind by mistake, due to which the accident occurred.<br/><br/>Police said, there were fears of a higher casualty toll as bodies still remained trapped in some of the rail cars. Rescue services are at the spot.<br/><br/>An enquiry has been ordered by the Railways Minister into the accident. Prime Minister Nawaz Sharif has offered condolences for the victims and asked authorities to provide all possible assistance to the families.