In Washington, the Trump administration is raising the possibility it could impose more sanctions on Iran. The State Department said sanctions are one tool the US has to respond to any potential human rights abuses.

HEATHER NAUERT US STATE DEPARTMENT SPOKESPERSON "Many nations around the world are watching what is happening in Iran, watching very closely. The United States is, certainly our allies and partners are." "We don't get ahead of sanctions, but that is one tool kit - a couple things that we have in a very broad and wide toolkit. It's a range of options that we certainly have going forward and that's why I say, we're watching reports very carefully of any potential human rights abuses of these protesters who are protesting peacefully."