It said the incident took place at about 2.45pm when the rig was being positioned at Salam-3, about 260km off Miri and their Emergency Response Team had been mobilised soon after all the personnel were ordered to evacuate.
"We confirm that all people on board (the rig) have been evacuated with no known injuries. The majority of the crew have returned to Miri, except those remaining near the location to respond to the incident,” it said in a statement.
It added that as of 7.45am on Tuesday (May 4), NAGA 7 had submerged.
Meanwhile, information obtained from the Seafarer Life Facebook page revealed that 101 personnel were on board the ill-fated rig during the incident and two vessels, Perdana Marathon and Armada Tuah 305 had rescued them.
The NAGA 7 is owned by Malaysian public-listed company,Velesto Energy Bhd and was built in 2015 with the capability to operate in a water depth of up to 114 metres and drilling to up to 9,144 metres. - Bernama