Britain's Royal Air Force conducted the first airstrikes of its mission against Islamic State militants in Iraq Tuesday.

"Royal Air Force Tornado GR4 aircraft have been in action over Iraq today in the fight against ISIL," the Ministry of Defense said in a statement. "This action is part of the international coalition's operations to support the democratic Iraqi government."

The Ministry said two Tornado aircraft assisted Kurdish troops in northwest Iraq who were under attack from ISIS militants.

"An initial assessment indicates that both precision strikes were successful," the statement said.

"U.S. welcomes first airstrikes against ISIL targets from our UK allies today in Iraq," White House Deputy National Security Adviser Ben Rhodes tweeted Tuesday.