SINGAPORE - Three transport workers who reacted quickly saved the life of a toddler at Somerset MRT station last month, SMRT said.

"Thanks to the public-spiritedness and courage of our #SMRTHeroes and members of the public, a child's life was saved!" the transport operator said in a Facebook post on Tuesday (March 14).

While on duty at Somerset station on Feb 13, security officer Punitha noticed a crying mother and her child at about 4.40pm.

Realising that something was amiss, Punitha informed station manager William Koh and assistant station manager Kuldip Kaur.

Mr Koh saw that the child's lips were turning blue and his eyes were not moving, the SMRT post said.

"William quickly carried the baby from the mother while Ms Kuldip made a public service announcement to seek professional help," SMRT said.

Mr Koh tried to open the child's mouth to ensure that his airway was not blocked and patted the baby gently on his back.

A medic from the Singapore Armed Forces offered to help Mr Koh, and calmed the mother, who was not named.

"It was not long before the child started to respond. A nurse also rushed over to offer assistance to ensure that his airway was fully cleared," SMRT said.

They advised the mother to take the child, who turned one year old in March, to the nearest hospital for further checks.

"We really want to thank everyone who came forward to help. At that point in time, my wife did not know who to approach but these people came forward to help. They were very professional and we really appreciate it," said Mr Kelvin Wong, father of the baby boy.

Mr Koh shared that he felt nervous and scared, as it was the first time they were handling such a situation.

Ms Kuldip said: "The most important thing that was on our minds was to save the child. We cried tears of relief and joy when the child responded."