North Korea's foreign minister has arrived in Burma for talks with his counterparts in that country's ruling military government.

Foreign Minister Pak Ui-chun's arrival in the main city of Rangon Thursday comes amid concerns and speculation in the U.S. about the two authoritarian regimes' deepening relationship.

During a regional Southeast Asia security forum last week, U.S. Secretary of State Hillary Clinton mentioned reports that Burma recently received a shipment of military equipment from North Korea. 

Clinton also said Washington is concerned about reports the Burmese military junta is seeking help from North Korea on a possible nuclear program.

Pak Ui-chun is to travel to the capital of Naypyidaw on Friday.

Burma cut off diplomatic relations with Pyongyang in 1983 after North Korean agents tried and failed to assassinate then-South Korean President Chun Doo-hwan during the latter's visit to Burma. Twenty-one people were killed in the attack.

Some information for this report was provided by AP and AFP.