Turkish officials say four Turkish soldiers were wounded in a mortar attack on a base in northern Iraq where Turkish troops are training Iraqi soldiers battling Islamic State.
Western media are reporting that IS militants fired rockets on the Iraqi camp near the city of Mosul. A Turkish official says the attack originated from IS-held territory.
Sources say the camp came under mortar fire for several hours, and that Turkish troops responded with rounds of artillery.
Earlier this month, Turkey said more than 100 troops were deployed to the camp to protect Turkish military who are training Iraqi fighters seeking to recapture Mosul from Islamic State. But the Iraqi government has objected to the deployment, saying it is a violation of Iraq's sovereignty.
Some Turkish troops have since pulled out of the camp, where more than 1,000 Iraqi fighters have received training.