A dozen police and soldiers with a sniffer dog entered the hotel. Later, many of them crowded into the destroyed room to inspect the damage. The room was blocked off with security tape, shards of glass littered the road outside.
Traders' general manager Phillip Couvaras said in a statement that the hotel was working with authorities to investigate what happened.
But "because this is an active police investigation we cannot comment further at this time," he said. "The safety of our guests and staff are our highest priority and we are obviously monitoring the situation."
Small explosions occurred frequently when Myanmar was under 50 years of military rule, most often blamed on anti-government student activists or armed ethnic insurgent groups. But such incidents have become rare in recent years.
Myanmar has undergone rapid change since 2011, when the former army junta ceded power to a quasi-civilian government led by retired military officers. Since then, President Thein Sein has embarked upon a series of major reforms, liberalizing the economy and the political sphere, easing censorship and freeing political prisoners.
But many activists and rights groups have complained that country is still far from free, and dissent is frequently stifled. Thein Sein's government has also struggled both to end a civil war with ethnic Kachin rebels in the north, and curb a rising wave of anti-Muslim violence that has killed hundreds of minority Muslims and displaced nearly 150,000 more in the predominantly Buddhist country since last year.
No one claimed responsibility for the recent blasts to hit the country, which came as the country prepares to host the Southeast Asian Games in December.
The first bomb reportedly went off Friday at a guesthouse in Taungoo, a town 200 kilometers (125 miles) from Yangon, according to the independent media outlet, the Democratic Voice of Burma. It said two people were killed, but those casualties could not immediately be confirmed.
On Sunday, two other homemade bombs went off in Yangon. One of the bombs, attached to the bottom of a truck parked outside a market on Yangon's eastern side, wounded three civilians, according to a statement posted on Myanmar's police Facebook page.
Another homemade bomb exploded one at a bus stop in the west of the city, but no casualties were reported in that blast, police said.
Police called on the public to be vigilant and report any suspicious packages found at bus or train stations, or at the seaport.
- AP