Yemeni security officials say a suicide car bomber struck a police station in the southern city of Aden.

Witnesses said firefighters and ambulances rushed to the scene in the busy district of Crater. Body parts were scattered on the ground, but officials couldn't immediately give a number for casualties.

Friday's attack comes one day after a suicide bomber blew up his vehicle near the presidential palace housing the president and prime minister. At least seven were killed in the attack, and an Islamic State affiliate claimed responsibility.

IS has claimed responsibility for some of the deadliest attacks in Yemen since March, including the assassination of a city governor and the bombing of a hotel that formerly housed the Cabinet.