ISTANBUL — A missile fired by an Iranian ship during a training exercise in the Gulf of Oman mistakenly hit a support vessel, killing 19 sailors and injuring more than a dozen others, Iran's state media reported.

The ship was hit near the southern port of Jask not far from the Strait of Hormuz late Sunday, and rescue teams helped evacuate the wounded, according to reports. The incident comes amid severe tensions between Iran and the United States and its allies in the Persian Gulf region in recent months. The U.S. Navy has accused Iran of harassing its vessels in the area.

Iranian forces towed the ship, the Konarak, to a nearby naval base following the incident, state media reported. The Dutch-made vessel has been in service since 1988 and usually carries a crew of 20 sailors, according to the Associated Press.

Search-and-rescue teams were immediately dispatched to the area to evacuate the wounded, media reports said.

The Konarak was reportedly targeted with a Noor anti-ship missile that has long been a part of Iran’s anti-ship arsenal, according to the intelligence analysis firm Jane’s.

The loss of the ship “will not have a significant impact on the wider capabilities of the Iranian Navy,” Jane’s senior military capabilities analyst Reed Foster said in an email. But “a replacement will likely take years to come into service,” he said.

Foster said it was possible that the test firing “may have been a capability demonstration coming off the heels of heightened tensions in the gulf following IRGC harassment of U.S. Navy ships last month,” referring to Iran’s Islamic Revolutionary Guard Corps.