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
Over 2,000 People's Climate March protests have taken place in 166 countries ahead of a major UN conference on climate change.
On English votes for English laws Ed Miliband is damned if he does and damned if he doesn't.
School fees, pricey private medical care and the fear of interest rate rises mean even those on £200,000 are feeling the pinch.