(Reuters) – Teleflex Inc said on Monday it plans to recall some lots of its Hudson RCI Sheridan endotracheal tubes used for helping patients breathe, following reports of four deaths.

The worldwide recall comes after the products were found to have an increased occurrence of being disconnected from the breathing circuit, resulting in insufficient oxygen supply, the company said.

Teleflex, which said the recall had been labeled as Class I by the U.S. health regulator, advised patients to immediately discontinue use of the products and return the affected products.

(Reporting by Saumya Sibi Joseph in Bengaluru; Editing by Shounak Dasgupta)