5 killed, 20 injured in blast at a building in Karachi

At least five people were killed and 20 others injured in an explosion in a multi-storey building in Karachi's Gulshan-i-Iqbal area on Wednesday, said officials.

While the cause of the explosion suspected to have taken place on the second floor is yet to be ascertained, a senior police official said that it "seems to be a...