KARACHI, Pakistan, Jan. 22 (UPI) --
A gas cylinder explosion killed one and injured four others, some critically, in Karachi, Pakistan, police said.
Geo TV said the blast occurred in a dental clinic in the Gulshan-e-Iqbal block of the city. Police said the person killed worked in a laboratory.
A rescue operation was under way, The Express Tribune reported. No other details were released.
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