President Donald Trump said the United States launched a “powerful and deadly" strike against forces of the Islamic State group in Nigeria, after spending weeks accusing the West African country's government of failing to rein in the targeting of Christians. | AP

A Powerball ticket purchased at a gas station outside Little Rock, Arkansas, won a $1.817 billion jackpot just before Christmas. | AP

The Colosseum metro station in Rome, a long-delayed and complex project to bring a subway line under ancient Roman ruins and through Rome’s historic center, opened to the public for the first time on Tuesday. | AP