The gas supply to 23 households in Jalan Bukit Merah were affected on Thursday night after a gas leak was discovered at Block 109.
A SP PowerGrid spokesman said they were alerted to the leak at about 8.30pm on Thursday. Engineers went down to investigate the incident immediately, and the affected area was cordoned off.
''Preliminary investigations have shown that a low pressure gas leak was detected at a walkway near the void deck,'' said the spokesman, who added that the cause of the leak is still being investigated.
The leak was isolated at 11pm, but the supply to 23 units in Blk 109 was nevertheless affected. Repair works will commence soon, said SP Powergrid late on Thursday night.