A new rocket attack against a base in Iraq housing servicemembers left three American troops wounded, according to the Pentagon.

The U.S. military carried out retaliatory airstrikes on Thursday that targeted weapons facilities belonging to an Iranian-backed Shiite militia group blamed for a similar attack on Wednesday on the base that killed two American service members and a British soldier.

PHOTO: A photo released by the government-affiliated Media Security Cell on March 12, 2020, shows a rocket-rigged truck launcher after a rocket attack on Camp Taji, a few miles north of Baghdad, in Rashidiya, Iraq. (Media Security Cell via AP) More

"Last night, there was a Katyusha rocket attack on U.S., coalition and Iraqi forces at Camp Taji," Jonathan Hoffman, the Pentagon's chief spokesman, said in a statement. "We had three U.S. service members who were injured. Two seriously who are being treated at the military hospital at the Baghdad Airport base."

A spokesman for the U.S.-led coalition in Iraq had earlier confirmed via Twitter that two Iraqi troops were also wounded in Saturday's attack on the large training base known as Camp Taji, located north of Baghdad.

"At least [25] 107mm rockets impacted Iraq's Camp Taji base hosting Coalition troops, March 14 at 10:51 a.m. (Iraq Time)," wrote Lt. Colonel Myles Caggins, the spokesman for Operation Inherent Resolve "3-Coalition WIA (wounded in action) , 2-Iraqi WIA. Assessment and investigation ongoing,

MORE: US military conducts airstrikes in Iraq in retaliation for rocket attack that killed 2 Americans

Iraqi Security Forces confirmed in a tweet that they had located the seven launch platforms used to launch the rockets at Camp Taji and found 24 unfired missiles.

The @CJTFOIR confirms at least (25) 107mm rockets impacted Iraq's Camp Taji base hosting Coalition troops, March 14 at 10:51 a.m. (Iraq Time). 3-Coalition WIA, 2-Iraqi WIA. Assessment and investigation ongoing, follow @OIRSpox & @SecMedCell for updates. https://t.co/q3ybQYJU40 pic.twitter.com/3JqyMnqQYq — OIR Spokesman Col. Myles B. Caggins III (@OIRSpox) March 14, 2020

The Pentagon has blamed the militia group, Kata'ib Hizbollah (KH), for more than a dozen rocket attacks in the last six months that have targeted U.S. military facilities in Iraq.

A rocket attack in December that killed an American contractor triggered a series of events that almost led the U.S. and Iran to the brink of war.

PHOTO: A U.S. Army paratrooper assigned to the 82nd Airborne Division pulls security during a base defense exercise on Camp Taji, Iraq, Jan. 19, 2020. (U.S. Army ) More

More than a dozen 107-millimeter rockets were fired at Camp Taji on Wednesday, not only killing the three coalition members but also wounding 14 other personnel.

That attack led to the U.S. retaliatory airstrikes that targeted five weapons depots belonging to KH that housed weapons similar to the ones used in the deadly attack.

(MORE: 2 Americans among 3 service members killed in rocket attack on base in Iraq: Officials)

"We're not going to tolerate these direct attacks on American or coalition service members, and we're willing and able to respond," Gen. Kenneth McKenzie, the commander of U.S. Central Command, told reporters on Friday.

He added, "What should now be obvious to everyone is you're not going to be able to fire those at a U.S. or coalition base, hurt or kill our people, and escape unscathed."

The Iraqi government said later that five Iraqi security forces were also killed in the attack.

PHOTO: U.S. Army paratroopers assigned to the 82nd Airborne Division pull security during a base defense exercise at Camp Taji, Iraq, Jan. 19, 2020. (U.S. Army ) More

McKenzie also warned Iran and its proxy groups to not respond to the airstrikes with new attacks "that would endanger U.S. and coalition forces or our partners."

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