KARACHI: An explosion near Mohabbat Nagar area of Malir in Karachi killed one person and injured three others on Monday, DawnNews reported.

Police sources said that the bomb was planted and concealed in a cement block some time earlier but detonated on Monday due to the closure of mobile phone services.

Rescue and emergency teams reached the site of explosion and the injured were shifted to a nearby hospital.

Security forces cordoned of the area as investigations into the blast went underway.