Twitter posts about anti-government protests have landed a human rights activist in Bahrain behind bars.

Said Yousif al-Muhafda is accused of disseminating false information about clashes between security forces and protesters in the country’s capital, the state-run Bahrain News Agency said Thursday.

Al-Muhafda, the head of documentation for the Bahrain Center of Human Rights, was arrested Monday during a demonstration, attorney Mohamed Al-Jishi said.

Just before his arrest, the center said a series of posts went out on his Twitter account, describing a shotgun injury, tear gas and “security forces spraying pepper spray on female protesters faces as they mock them/laugh.”

Al-Muhafda has been using the account for months to document what he says are human rights violations in Bahrain.

A government prosecutor pointed to one Twitter post, which showed a picture of an injured leg.

The image, posted Monday, “resulted in protests and acts of sabotage that disrupted security on that same day,” Bahrain’s government news agency said, citing Deputy Attorney General Mohammed Salah.

The activist’s attorney says he was observing the demonstration, not participating.

He is scheduled to appear in court on Tuesday.

Human rights activists have criticized the arrest, saying it is part of a growing crackdown on social media posts.