DENPASAR - Nine Indonesians including three children age three, six and nine, died after a bridge in Bali collapsed on Sunday (Oct 16), said the National Disaster Management Agency (BNPB).

There are also 30 others injured but search and rescue efforts have stopped due to low light conditions and will only resume in the morning, said the BNPB.

According to the agency, the suspension bridge, which links Nusa Lembongan and Nusa Ceningan - two small islands off the south-east coast of Bali - snapped at about 6.30pm (7.30pm Singapore time).

Based the interim report all the victims are local residents, not foreigners, said the BNPB in a statement on Sunday night.

Nusa Lembongan and Nusa Ceningan have started gaining popularity in recent years due to its largely remote beaches and rustic villages.

The bridge, known among locals and tourists as the "Yellow Bridge", was crowded on Sunday because crowds were performing a ceremony to commemorate Nyepi, the Balinese Day of Silence, said BNPB spokesman Sutopo Purwo Nugroho.

"Before the collapse, (the bridge) was rocking," he added. "Some residents in the location immediately tried to save the victims, some of whom were able to swim to shore."

Dr Sutopo said rescue workers could not tell how many people fell into the water below when the bridge collapsed.

Below is a interactive video of the bridge in the day, uploaded seven months ago.

A police officer, Arendra Wahyudi, told Reuters that some motorbikes also fell into the water.

The sea beneath the bridge was less than 2m deep, Mr Wahyudi said, but many of the victims were crushed by debris.