A massive fire broke out at Metro Hospitals and Heart Institute in Sector 12 of Noida in the National Capital Region on Thursday, PTI reported. No casualties were reported.

More than 60 people, who were inside the building when the fire broke out, were rescued, Gautam Buddh Nagar District Magistrate BN Singh said. “More than 40 patients have been shifted to Metro’s another hospital,” he said.

Smoke was seen billowing out of the hospital building, The Times of India reported. Several people broke window panes and jumped out.

Ten fire tenders doused the flames, officials said. While some reports said a short-circuit is suspected to be the cause of the fire, the Hindustan Times quoted sources as saying that leakage in a gas cylinder sparked the blaze. It has not yet been confirmed.

In January, at least 150 shanties were destroyed in a blaze in Noida’s Sarfabad village. At least two people were critically injured.