Afghan President Ashraf Ghani has condemned a suicide truck bombing in a residential area of the capital, Kabul.

Police and health officials say seven people were killed and about 400 wounded in the blast early Friday, many of them civilians. A hospital official says 48 women and 21 children were among those hurt.

Ghani says in a statement that the attack apparently targeting civilians shows insurgents in Afghanistan are desperate.

There was no immediate claim of responsibility. It happened near a government complex and a military base and it's not clear whether they were the actual targets. It's also not known how the attackers smuggled a large amount of explosives into the heavily guarded city.

The officials spoke on condition of anonymity as they weren't authorized to speak to journalists.