BAGHDAD (AP) — Iraqi officials say the death toll from a late night suicide attack in the country's north has risen to seven and that a 7-year-old boy was among those killed.

A bomber detonated an explosives-laden truck late Monday at the gate of a military base inside the city of Mosul. Officials initially said four people were killed and seven wounded.

However, a police officer on Tuesday put the toll at seven dead and 15 wounded.

Police also say assailants broke into a house in Mosul on Monday night, stabbing to death two men and two women, including a provincial officer's bodyguard.

Two health officials confirmed the casualty figures. All officials spoke on condition of anonymity as they are not authorized to release information.

Insurgents trying to destabilize Iraq launch frequent attacks.