Mourners carry the coffins of Iran’s top general Qassem Soleimani and Abu Mahdi al-Muhandis, deputy commander of Iran-backed militias in Iraq known as the Popular Mobilization Forces, during their funeral in Karbala, Iraq. Picture: Khalid Mohammed/AP

Tehran, Iran – The body of Gen. Qassem Soleimani, who was killed in a US drone strike, arrived Sunday in Iran to throngs of mourners, as President Donald Trump threatened to bomb 52 sites in the Islamic Republic if Tehran retaliates by attacking Americans

Soleimani’s death Friday in Iraq further heightens tensions between Tehran and Washington after months of trading attacks and threats that put the wider Middle East on edge. The conflict is rooted in Trump pulling out of Iran’s nuclear deal with world powers, an accord likely to further unravel as Tehran is expected to announce as early as Sunday it will break another set of limits.

Iran has promised “harsh revenge.” Already, a series of rockets launched in Baghdad late Saturday fell inside or near the Green Zone, which houses government offices and foreign embassies, including the US Embassy.

Trump wrote on Twitter afterward that the US had already “targeted 52 Iranian sites (representing the 52 American hostages taken by Iran many years ago), some at a very high level & important to Iran & the Iranian culture.”

soldier; US Army
A US Army soldier checks his rifle before heading out at Fort Bragg, North Carolina, as troops from the 82nd Airborne are deployed to the Middle East as reinforcements in the volatile aftermath of the killing of Iranian General Qassem Soleimani. Picture: Chris Seward/AP

Trump did not identify the targets but added that they would be “HIT VERY FAST AND VERY HARD.”