A Vietnamese delegation on April 4 afternoon left Hanoi for Laos to attend the fourth Mekong River Commission (MRC) Summit slated for the next day.

Deputy Prime Minister Tran Hong Ha called for strengthening the global and regional legal framework for the management and use of cross-border water resources.

Crucial water flows to Tonle Sap, South-east Asia's largest lake, have been delayed for a second consecutive year, according to river experts, severely disrupting fishing and threatening the food supply of more than a million people.