Trump says Iran wants to negotiate with the U.S. after his threat to strike the country over its crackdown on protesters.

Iran has warned of retaliation if attacked by the US as a violent crackdown on nationwide protests intensifies, with activists reporting nearly 500 protesters killed and over 10,000 detained.

A crackdown on nationwide protests in Iran has killed at least 544 people and even more are feared dead, activists said Sunday.