Mynamar coup leader Min Aung Hlaing and his generals threw a lavish party to comemorate the country's Armed Forces Day while the killing of more than 90 anti-coup protesters has drawn global outrage.
Defence ministers of 12 nations have condemned Myanmar military over the killings, reports the BBC.
On Saturday, the deadliest day since last month's coup, theUS accused the junta of a "reign of terror".
Some reports said that the military had tried to intervene in the mourning while the funerals were held.
On Sunday, families held funerals for some of those killed the day before. Some local media said security forces had tried to intervene in funerals. Burmese-language outlet The Irrawaddy said police tried to arrest people at a service for a student union member killed in the town of Phaya-Gyi.
Protests are also reported to be continuing despite Saturday's crackdown, with rallies in towns including Katha and Hsipaw.
More than 400 people have now been killed in the suppression of protests in Myanmar since the 1 February coup.
The military seized control of the South East Asian country after an election which Aung San Suu Kyi's National League for Democracy (NLD) party won by a landslide.