Exiled Prince Reza Pahlavi made his first call for protests on Thursday, the same day Kurdish merchants are expected to strike following a long-awaited call by Kurdish parties.

Large protests resumed in Tehran’s bazaar, the capital’s historic mercantile hub, with security forces firing tear gas at anti-government demonstrators as unrest also flared in the holy city of Mashhad.

Security forces fired tear gas inside Tehran’s Sina Hospital on Tuesday, according to videos sent to Iran International.

At least 29 people have been killed and more than 1,200 arrested in nine days of nationwide protests in Iran, HRANA said, as demonstrations and strikes continued despite a heavier security presence.

US President Donald Trump posed smiling with a “Make Iran Great Again” cap, after vowing on Saturday to respond forcefully if Iranian authorities killed protestors.