At least 76 people have been killed after a massive car bomb exploded at a security checkpoint in the Somali capital Mogadishu.
Scores of others, including children, were wounded in the attack, which came during rush hour.
Mogadishu is regularly hit by car bombings carried out by al-Shabaab Islamist militants, but Saturday's attack was one of the deadliest in recent memory.
Mogadishu mayor Omar Mohamud Mohamed said the exact death toll was not yet known.
"We will confirm the exact number of the number of the dead later but it is not going to be small, most of the dead were innocent university students and other civilians," he told journalists.
Death toll mounts to 80 people including almost 20 university students in #Mogadishu suicide bombing at KM 7 or Ex Koontrool Afgooye .There have been numerous casualties at various hospitals, and efforts are under way to identify the dead bodies lined up in open space.#Somalia pic.twitter.com/W2I8dmlFND
Mohamed Moalimuu (@MOALIMUU) December 28, 2019
There was no immediate claim of responsibility for the blast. Al-Shabaab was pushed out of Mogadishu in 2011, but continues to target high-profile areas of the city.
Five people were killed two weeks ago when al-Shabaab militants, a group linked to al-Qaeda, attacked a Mogadishu hotel popular with foreigners.
The deadliest attack in Somalia's history was in October 2017, when 512 people were killed in a truck bombing that was blamed on al-Shabaab but never claimed.