Maryam Rajavi, the head of the anti-Iran terror group Mujahedin Khalq Organization (MKO), is in critical condition following a severe panic attack, an informed source has said.

The source told the IRNA correspondent in Paris that Rajavi suffered the panic attack on Saturday afternoon on the way from the French capital to her home in Auvers-sur-Oise and was transferred to hospital.

She is reported to be in critical condition, and her security team are on high alert to prevent any leaks regarding their leader, the same source said.

Maryam Rajavi, 70, suffers from rheumatism, colorectal cancer and nervous disease, the source further said, adding that the MKO leader also had a panic attack two years ago that forced her to disappear from the public for two weeks.