U.S. President Donald Trump said that Iran proposed negotiations after he threatened to strike the nation over its bloody crackdown on protesters. Activists said the death toll in protests rose to at least 544.

At least 538 people have been killed since demonstrations began two weeks ago, according to figures from the U.S.-based Human Rights Activists News Agency.

President Trump appeared to lay out his red line of action on Friday when he warned that if the Iranian government began "killing people like they have in the past, we would get involved."

President Donald Trump is weighing a series of potential military options in Iran following deadly protests in the country, two US officials told CNN, as he considers following through on his recent threats to strike the Iranian regime should it use lethal force against civilians.

U-Haul truck reportedly drives through Iran protest crowd in Los Angeles, striking one person near Federal Building in Westwood. Driver detained by LAPD.

Iran’s foreign minister said Monday that “the situation has come under total control” after a bloody crackdown on nationwide protests in the country. Abbas Araghchi also said that the protests “turned violent and bloody to give an excuse” for U.

Over 500 people have been killed in two weeks of unrest in Iran, a rights group said on Sunday, as Tehran threatened to attack American military bases in the Middle East if the U.S. hits first.