Burma says it closed its border with Bangladesh shortly after last months deadly grenade attack at an opposition rally in Dhaka, which killed 20 people.
Burmese officials says it closed the 320 kilometer Teknaf border on August 23, just two days after the attack at the Awami League rally. Some officials say Rangoon sealed off the border to try to stop criminals infiltrating the country.
The Awami League has said the bomb blast was an attempt to assassinate its leader, Sheikh Hasina.
No arrests have been made in the case, but the government has offered a reward of $160,000 for information leading to the assailants.
Information for this report is provided by AFP and Reuters.