Pakistan, March 30 -- An underground fire near Korangi Crossing in Karachi has been burning for over 30 hours. It is believed the fire was caused by a methane leak after a construction firm drilled for a tube well. Despite continuous firefighting efforts, the flames remain uncontrolled.

Water, sand, and soil have been used to fight the blaze, but high gas pressure is causing the fire to resurface. According to Chief Fire Officer Humayun Ahmed, the fire can only be controlled once the gas pressure decreases, which may take several days.

Experts warn the fire could burn for up to 10 days. The exact composition of the gas is still unknown, but authorities are collecting water samples to assist in the investigation. The Sui Southern Gas Com...