Militants have now targeted Jinnah Hospital where victims from Friday's attacks are thought to be recovering.
The attacks have left 13 dead of which 5 were security officers. The militants came in armed with weapons. Police and bomb disposal networks are on the scene.
Commentators have speculated that the men entered the hospital in search for the militant rebel who survived the attacks on Gharhi Shahu and Model Town Mosques in Lahore.
This has come as a shock for many of those who are still recovering from Friday's events which left 98 dead and hundreds injured.
More will follow as the story progresses.