Royal Thai Navy oarsmen row the Suphannahong Royal Barge past the Grand Palace during a rehearsal of Thai King Maha Vajiralongkorn's coronation ceremonies on the Chao Phraya River in Bangkok, Thailand, April 30, 2019. Thailand has decided against inviting any foreign leaders to the coronation ceremonies of King Maha Vajiralongkorn, scheduled for the upcoming weekend, according to a press statement of the Ministry of Foreign Affairs issued on Tuesday. (Xinhua/Rachen Sageamsak)