SINGAPORE - Monorail service on Sentosa resumed at 9.30pm on Saturday, the attraction's management announced on social media.

Service had earlier been suspended and two-way shuttle bus services made available from the Beach Station to HarbourFront bus interchange, it said in Facebook and Twitter updates at around 7pm.

"If you are at Waterfront Station, please proceed to the Resorts World Sentosa basement to take Sentosa Bus 1 and 2 towards Beach Station, or to leave the island, take the RWS8 bus to Vivo City bus stop. Alternatively you may take the Sentosa Boardwalk to leave Sentosa," it added.

Crowds at the island would have been swelled on Saturday, due to The Color Run Singapore, which was held at 4pm at the Beach Station.

In an incident in December last year, some 60 passengers had to be rescued after their two-carriage Sentosa Express train stalled. They were stuck for more than an hour.

Steps were then taken to improve the design of the power lines along the tracks, after it was found that a power line at the Beach Station had dislodged because of wear and tear. This damaged the train's "swinging arm" - a device under the carriages which is used to draw electricity from the power line - causing it to stall.

The Sentosa Express runs between four stations, spanning VivoCity, Resorts World Sentosa and the island's major beaches.