Hkakabo Razi is believed to be the highest peak in Southeast Asia which stands at an estimated 5,881 metres.
The region was the site of a brutal military crackdown against the Rohingya.
There was no immediate response from the Myanmar authorities to a Reuters request for comment.
The announcement came after Najib, who suffered a shock defeat in May elections, was summoned for a new round of questioning by the anti-corruption agency.
Military regimes in Myanmar imprisoned nearly 10,000 people since the army first seized power in 1962, sending the country into decades of isolation.
The popular tourist destination was hit by a magnitude 7 quake today - just a week after being rocked by an earlier earthquake that killed more than a dozen people.
WION Exclusive: Watch what line of Actual control looks like
WION Gravitas: Bangladesh proposes to fight alongside Myanmar to fight insurgents