Nigerian forces warn of Islamist militant attacks on Abuja airport, prison, and detention center.

Nigerian security agencies are on high alert after an internal memo warned of a plot by suspected Islamist militants to attack key infrastructure in Abuja and Niger State, including Nnamdi Azikiwe International Airport and a prison. The U.S. has advised Americans to leave Abuja due to rising violence, though Nigeria’s government described the move as a routine precaution.