NHG Health, National University Health System (NUHS) and SingHealth separately reported disruptions, warning patients of longer wait times and service delays.

National health technology agency Synapxe said there was no indication of a cyber incident. The cause of the disruptions remains unclear, as does whether the incidents are linked.

The attack is believed to have exploited outdated refrigeration control systems. France’s cybersecurity agency had previously identified a vulnerability in software supplied by a Danish company and is working to identify and warn other potentially affected businesses.

In Palangkaraya, capital of Central Kalimantan, air pollution levels hit a hazardous 1,296 on Indonesia's ISPU index on Oct 11.

One resident said the haze, linked to forest and land fires in the region, had dragged on for four months, with the smog "getting thicker by the day". Another in Pangkalan Bun described it as the "worst haze yet", with visibility severely reduced and the smell of smoke overpowering.

"We just want to breathe decent air," wrote a resident in Sampit, lamenting that people couldn't simply replace their lungs like spare parts.

The flooding was triggered by a landslide on Sunday (Oct 11) that blocked the river, sending powerful floodwaters downstream. Footage showed the Soti Khola bridge buckling under the force of the torrent before being swept away.

Authorities said on Monday that 96 people, including nine foreigners, had been rescued, with operations continuing despite receding floodwaters. While no casualties have been reported, five villagers are reportedly still uncontactable.

According to the Indonesian government and wildlife foundation Yayasan Inisiasi Alam Rehabilitasi Indonesia (YIARI), three mother-child pairs and two adult males were successfully relocated to Batu Nyambu protected ​forest in West Kalimantan.