The navy identified the victims in a statement on Tuesday.
The HOM helicopter carried four male crew members, including Commander Firdaus Ramli, commanding officer of the 503 squadron, and three female passengers.
The Fennec helicopter carried three male crew members, including Commander Muhamad Amir Mohamad, commanding officer of the 502 squadron.
Mr Khaled said a navy service member who was swimming in the pool the Fennec helicopter crashed into was also hit by debris and suffered a minor injury.
The navy’s parade, due to be held on Saturday, will be cancelled. The navy will instead hold a ceremony to pray for the deceased on Friday.
The Fennec helicopter was training for the parade for the third time, while the HOM helicopter was training for the first time, Mr Khaled said.
The Fennec helicopter was based in Lumut while the HOM helicopter was based in Kota Kinabalu, Sabah and flew to Lumut to participate in the rehearsals, he added.
The minister said the “new” HOM helicopter was delivered to the navy in 2021, while the Fennec helicopter has been in operation since 2003. Malaysia’s navy maintains a fleet of seven helicopters: Four Fennecs, 2 HOMs and one Super Lynx.
HELICOPTER EXPERIENCED “SIDEWAY SKID”
Footage of the incident circulated on social media showed seven helicopters flying over the base in a loose formation. The camera then pans to a pair that had separated to the right.
One of the helicopters was seen veering to the right, its main rotor hitting the left side of the other helicopter, creating a cloud of smoke and flying debris. The helicopters then fell to the ground.
When asked by a reporter if preliminary investigations had pointed to a possible cause, Mr Khaled said he did not want to “pre-empt” anything.
“We want to respect the family members’ sensitivities and these things should be investigated thoroughly,” he said.
The navy has set up an investigation board to probe the accident, assisted by the Royal Malaysian Air Force as well as the Director General of Technical Airworthiness (DGTA), Mr Khaled added.
The DGTA is a government body that ensures the design, production and maintenance of state-registered aircraft are consistent with international standards and recommended practices, its website states.