ABUJA, Nigeria, May 2 (UPI) -- Nigeria said it found and destroyed a Boko Haram bomb-making factory in Borno State.
Col. Sani Usman of the Nigerian army said the factory making improvised explosive devices was found Friday in Ngala after the army got "credible and timely information" about its location from "good spirited Nigerians."
Usman said that besides destroying the factory, the army killed four Boko Haram terrorists and recovered two AK-47 rifles, 29 rounds of ammunition and 20 gas cylinders of various sizes.
Nigerian army troops also invaded Yerwa and Kaluketu where Boko Haram terrorists "kept rustled cows," according to a statement.
The finding in Ngala came after reports Saturday that the army found a large pit where Boko Haram had dumped victims of the attacks in Jada.
More than 20,000 people have been killed by Boko Haram and 2.3 million displaced since the terrorist group began its violent campaign in 2009 to forge an Islamic caliphate in Nigeria.
Boko Haram was designated a foreign terrorist organization by the U.S. State Department in 2013. In 2015, the group pledged its allegiance to the Islamic State.