The United States has confirmed that roughly 140 American service members have been wounded since the war with Iran began on February 28, according to a statement released by the Pentagon on Tuesday.

Pentagon spokesperson Sean Parnell said most of the injuries sustained during the conflict have been minor.

“Since the start of Operation Epic Fury, approximately 140 U.S. service members have been wounded over 10 days of sustained attacks,” Parnell said. “The vast majority of these injuries have been minor, and 108 service members have already returned to duty. Eight service members remain listed as severely injured and are receiving the highest level of medical care.”

The announcement followed a report by Reuters citing two unnamed officials who estimated that about 150 service members had been injured during the first 10 days of the conflict.

The U.S. military has also confirmed seven fatalities resulting from Iranian attacks across the region. On Monday, officials said an eighth service member died in Kuwait due to a “health-related incident.”

The hostilities erupted after a joint U.S.-Israeli bombing campaign killed Iran’s Supreme Leader Ali Khamenei and more than 1,250 other people. In response, Iran has launched missile and drone attacks targeting Israel and several U.S. military installations across the Middle East.

President Donald Trump has not ruled out the possibility of deploying U.S. ground forces to Iran as the conflict continues to escalate.