In Somalia, at least 21 people were killed and more than 50 others wounded Saturday as a truck loaded with explosives sped through a security checkpoint and detonated in a residential neighborhood of the central Somali town of Beledweyne. The blast reduced buildings and shops to rubble. No one has claimed responsibility, though the al-Shabab armed group has been active in the area.

The attack came one day before U.S. Defense Secretary Lloyd Austin met Somali President Hassan Sheikh Mohamud in Djibouti, where Austin praised Somalia’s military for what he called its “impressive progress” in the fight against al-Shabab. Austin is in Nairobi, Kenya, today and will visit Angola later in the week.