A Web site operated by the US government has been hacked by a group claiming to be in retaliation for the assassination of Iran's top general.
Those who clicked on the Federal Depositary Library (FDLP) Program website on Saturday night were confronted with a black page claiming to be from the Islamic Republic of Iran.
It showed a picture of President Donald Trump being hit in the face by a fist with blood dripping from his mouth.
Underneath, it read "Hacked by Iran Cyber Security Group Hackers", claiming that the attack was "only a small part" of its capability.
Despite this, there is little evidence that the defeat was carried out by Iran.
A spokesman for the Cyber Security and Infrastructure Agency, a division of the Department of Homeland Security, said the site went offline shortly after the image appeared.
"We are aware that the Federal Deposit Library Program (FDLP) website has been disfigured with pro-Iranian and anti-US messages. There is currently no confirmation that this was the action of the Iranian state-sponsored actors.
"The site has been taken offline and is no longer accessible. CISA is monitoring the situation with FDLP and our federal partners."
This is just days after a US air raid killed Major General Qassem Soleimani – the country's top Quds force chief and mastermind of his regional security strategy.
The regime threatened to retaliate.