Reuters - British-Iranian aid worker Nazanin Zaghari-Ratcliffe was summoned by an Iranian Revolutionary Court on Tuesday and informed about a new charge, state television reported.

�Branch 15 of the Islamic Revolutionary Court summoned Nazanin Zaghari and her designated lawyer this morning and informed her of a new indictment,� state television cited an unnamed official as saying on its website.

Zaghari-Ratcliffe, a project manager with the Thomson Reuters Foundation, was arrested in April 2016 at a Tehran airport as she headed back to Britain with her daughter after a family visit.

She was sentenced to five years in jail after being convicted of plotting to overthrow Iran�s clerical establishment. Her family and the foundation, a charity that operates independently of media firm Thomson Reuters and its news subsidiary Reuters, deny the charge.

Zaghari-Ratcliffe was temporarily released from jail in March amid concerns over the spread of the new coronavirus in Iran�s prisons but is barred from leaving the country.

Writing by Parisa Hafezi; Editing by Andrew Heavens and Nick Tattersall