The foreign ministry yesterday summoned the Myanmar envoy to Bangladesh and strongly protested the instances of violation of the country's airspace by Myanmar military drones and helicopter on September 10, 12 and 14.

Expressing concern, Bangladesh also mentioned that these provocative acts may lead to unwarranted consequences.

Diplomatic sources said the Myanmar military drones and helicopters violated the country's airspace more than 20 times in last three weeks.

Director General (South East Asia Wing) of the Ministry of Foreign Affairs summoned Aung Myint, chargé d'affaires of the Myanmar Embassy in Dhaka, yesterday evening and handed over a protest note to him.

Referring to earlier instances of airspace violation since August 25, "Bangladesh expressed deep concern at the repetition of such acts of provocation and demanded that Myanmar takes immediate measures to ensure that such violation of sovereignty does not occur again," said a press release.

Earlier, in a diplomatic note sent to the embassy on September 1, the ministry protested the repeated instances of airspace violation by Myanmar helicopters on August 27 and 28 and September 1.

This is for the fifth time in three weeks Bangladesh summoned the Myanmar envoy and handed over a strongly worded protest note.