A summit between U.S. President Joe Biden and leaders of the Association of Southeast Asian Nations (ASEAN) due to be held later this month has been postponed and organizers will seek a new date, Cambodia's foreign minister said on Wednesday.

"It has been postponed to a later date because some ASEAN leaders cannot attend the meeting on the proposed dates," Minister Prak Sokhonn said in a text message. Cambodia is the current chair of ASEAN.

The United States had announced the summit would be held on March 28 and 29.