Three suicide bombers and a powerful car bomb took aim at the headquarters of the Kabul traffic department, followed by a clash between at least one insurgent and security forces, Afghanistan police said.
It is unclear whether there were any casualties in the attack, which happened just days after six suicide bombers targeted the Afghan spy agency.
The Taliban has claimed responsibility for today's attack.
More top news
As Fiona Woolf faces calls to quit as head of the Westminster sex abuse probe, here is what you need to know about it so far.
Kevin Scott was reunited with his mother after 57 years yesterday after she gave him away when he was just six weeks old.
One hundred years after the First World War began, British taxpayers are still servicing the loans taken out to finance the conflict.