Iraqi officials say a suicide bomber has killed five people at a hospital north of Baghdad where victims from a previous blast were taken.
Mohammad al-Asi, the media adviser for the Salahuddin provincial governor, says the bomber got into the first floor of the Tikrit public hospital on Friday night.
Family members of people wounded in an attack at a mosque earlier in the day were gathered at the hospital. The earlier attack killed 16 people.
An official at the hospital and a security official in Tikrit say five people were killed and 16 injured.
They spoke on condition of anonymity because they were not authorized to speak to the media.