Police say a special squad has detonated a bomb near a compound housing local oil workers in Nigeria's restive north.
Kaduna State police spokesman Aminu Lawal said the squad secured the area and safely detonated the bomb Wednesday in the north-central city of Kaduna.
Witness Ishaya Haruna says a watchman guarding the staff quarters of Nigeria's state-run oil company spotted the bomb just before dawn. Haruna says people avoided the area until the bomb was detonated at about 8 a.m.
Police on Tuesday safely detonated another bomb found nearby.
On Monday, a Kaduna court accused a well-known Islamic scholar of conspiring to commit an act of terrorism after a foiled April bomb attack in a Kaduna suburb. Sheikh Muhammad Awwal Albani pleaded not guilty.