The Chinese Consulate in Myanmar’s second-largest city has been slightly damaged by an explosive device.

The blast occurred at the consulate office in central Mandalay, south of the sprawling Royal Palace, around 7pm on Friday, local media said.

There were no casualties.

In a statement, the Myanmar military blamed "terrorists" for the explosion that damaged roof tiles on the two-storey consulate, adding that security forces were investigating in order to arrest anyone found responsible.

No public claims of responsibility were made for the attack.

Speaking to The Associated Press on condition of anonymity, a resident living near the consulate in Mandalay’s Chanmyathazi township said security around the site has since been tightened, with nearby roads closed after the explosion.

China's embassy in Yangon did not respond to AFP's queries. (AP/AFP)