BAGHDAD - Iraq's government warned Monday that its relations with the United States were at risk after deadly American air strikes against a pro-Iran group sparked anger on the streets, with protesters torching US flags.

Baghdad said it would summon the US ambassador while Washington responded by accusing Iraqi authorities of having failed to "protect" US interests.

At least 25 fighters were killed in Sunday night's attacks, which saw US planes hit several bases belonging to the Hezbollah Brigades, one of the most radical factions of Hashed al-Shaabi, a Tehran-backed Iraqi paramilitary coalition.

The attacks came as Iraq is caught up in mounting tensions between its allies Tehran and Washington while it also grapples with huge street protests against corruption and Iran's growing political influence in the country.

The strikes "killed 25 and wounded 51, including commanders and fighters, and the toll could yet rise," said the Hashed, which holds major sway in Iraq.

Victims were still being pulled from the rubble of bases near Al-Qaim, an Iraqi district bordering Syria, on Monday, it said.

The Hezbollah Brigades said they will hold a mass funeral ceremony on Tuesday in Baghdad near the high-security Green Zone, where the US embassy is located.(FA)