<p>Multiple rockets hit near the US embassy in Iraq's capital early Sunday, an American military source said, the latest in a flurry of attacks against US assets in the country.</p>.<p>The assault sent warning sirens blaring across the diplomatic compound but it was unclear exactly what was hit and how many rockets made impact, the US source and a Western diplomat based nearby told AFP.</p>.<p>AFP's correspondents heard multiple strong explosions followed by aircraft circling near the Green Zone, the high-security enclave where the US mission is located.</p>.<p>It was the 19th attack since October to target either the embassy or the roughly 5,200 US troops stationed alongside local forces across Iraq.</p>.<p>The attacks are never claimed but the US has pointed the finger at Iran-backed groups within the Hashed al-Shaabi, a military network officially incorporated into Iraq's state security forces.</p>.<p>In late December, a rocket attack on the northern Iraqi base of K1 left one US contractor dead and unleashed a dramatic series of events.</p>.<p>Washington responded with retaliatory strikes against a hardline Hashed faction in western Iraq and days later, an American drone strike in Baghdad killed top Iranian general Qasem Soleimani and his right-hand man, Hashed deputy chief Abu Mahdi al-Muhandis.</p>.<p>Hashed factions have vowed revenge for the pair's death, insisting US troops should immediately leave Iraq.</p>.<p>Sunday's attack came just hours after one of the Hashed's Iran-backed factions, Harakat al-Nujaba, announced a "countdown" to ousting American forces from the country.</p>.<p>He tweeted a photograph of what he claimed was an American military vehicle, adding: "We are closer than you think."</p>
<p>Multiple rockets hit near the US embassy in Iraq's capital early Sunday, an American military source said, the latest in a flurry of attacks against US assets in the country.</p>.<p>The assault sent warning sirens blaring across the diplomatic compound but it was unclear exactly what was hit and how many rockets made impact, the US source and a Western diplomat based nearby told AFP.</p>.<p>AFP's correspondents heard multiple strong explosions followed by aircraft circling near the Green Zone, the high-security enclave where the US mission is located.</p>.<p>It was the 19th attack since October to target either the embassy or the roughly 5,200 US troops stationed alongside local forces across Iraq.</p>.<p>The attacks are never claimed but the US has pointed the finger at Iran-backed groups within the Hashed al-Shaabi, a military network officially incorporated into Iraq's state security forces.</p>.<p>In late December, a rocket attack on the northern Iraqi base of K1 left one US contractor dead and unleashed a dramatic series of events.</p>.<p>Washington responded with retaliatory strikes against a hardline Hashed faction in western Iraq and days later, an American drone strike in Baghdad killed top Iranian general Qasem Soleimani and his right-hand man, Hashed deputy chief Abu Mahdi al-Muhandis.</p>.<p>Hashed factions have vowed revenge for the pair's death, insisting US troops should immediately leave Iraq.</p>.<p>Sunday's attack came just hours after one of the Hashed's Iran-backed factions, Harakat al-Nujaba, announced a "countdown" to ousting American forces from the country.</p>.<p>He tweeted a photograph of what he claimed was an American military vehicle, adding: "We are closer than you think."</p>