Analysts have urged Washington not to intensify regional tensions by provocative words or actions ahead of US President Barack Obama's visit to Hanoi on Monday.

Obama's tour should not harm the interests of countries in the region, as some are currently involved in maritime disputes, they said.

It will be Obama's 10th trip to Asia as United States president. According to Vietnamese media, Hanoi is paying great attention to this visit and has prepared a high-level reception for Obama.