The Selangor Fire and Rescue Department refuted claims circulating on social media that its personnel Muhammad Adib Mohd Kassim has died.
"News of the death of a Fire and Rescue Department personnel on social media is untrue.
"He is in stable condition and let us pray together for his recovery," it said in a Twitter posting.
The department also shared a picture of the fake posting by one "Zack Ma", who claimed to have received information that the officer had died.
Muhammad Adib, 24, was critically injured after a mob attacked him near the Sri Maha Mariamman temple in Subang Jaya this morning.
He was one of the medical services personnel with the Fire and Rescue Department dispatched to the scene.
The mob had dragged him out of his vehicle and assaulted him, resulting in Muhammad Adib suffering fractures and internal injuries.
He is currently undergoing treatment at the intensive care unit of a private hospital in Subang Jaya.