A U.S. military service member was killed in Yemen, marking the first combat death under President Trump's administration.
A raid targeting Yemen's branch of al-Qaeda killed 30 people, including women and children. Three service members were wounded in the early morning attack.
One of the victims was Nora, the 8-year-old daughter of Anwar al-Awlaki, a radical Yemeni-American cleric killed in 2011.
U.S. Central Command said a fourth service member was injured after an aircraft was involved in a rough landing. It was destroyed to prevent it from falling into enemy hands.
An official said Trump approved the raid, though former President Barack Obama was briefed on it before he left office.
An al-Qaeda-linked news service called the raid a "massacre against Muslims."
Some activists called the raid "reckless."
Others noted a stark difference between the sobering news and Trump's first tweet of the day.
Others saw the raid as a sign of military success.
The Associated Press contributed to this report.