“The Prime Minister is deeply saddened by the deaths of eight Singaporeans in the earthquake at Mount Kinabalu,” the office of Prime Minister Lee Hsien Loong said in a statement Sunday.

“On behalf of all Singaporeans, the Prime Minister expresses his deepest condolences and sympathies to their families and loved ones.

“Monday, 8 June 2015 will be a Day of National Remembrance. State flags on all government buildings will be flown at half-mast,” it added.

The death toll from the disaster currently stands at 16, with two still missing.

Singapore confirmed that the bodies of six students from the Tanjong Katong Primary School had been identified.

It said a teacher and a Singaporean adventure guide perished, while another student and a teacher remained missing.

29 students and eight teachers from the school were part of an excursion to the popular climbing destination which was jolted by a 6.0-magnitude quake on Friday just as the 4,095-meter-high (13,435-foot) mountain was crowded with hikers.

The tremor triggered thunderous landslides that obliterated sections of trail on the peak, which is Southeast Asia’s tallest and located in the state of Sabah on Borneo island.