Vietnam cruised to a 6-1 win over Laos, Indonesia defeated Singapore 2-0 while defending champions Thailand - defeated 2-0 by Indonesia in their opening match - bounced back to emphatically beat Brunei Darussalam 7-0.

Vietnam top the group ahead of Indonesia on goal difference, with both sides on six points.

Cambodia defeated Timor-Leste 5-0 while Myanmar edged Philippines 2-1 as both teams moved to the top of the standings, with Cambodia ahead on goal difference.

Singapore, meanwhile, were held 0-0 by a spirited Laos in the other Group B tie on Tuesday.

Host nation Philippines salvaged a 1-1 draw with Cambodia, courtesy of Dennis Chung's late goal, while Malaysia came from a goal down to salvage a point against Myanmar.

Vietnam, meanwhile, sent a warning of their gold medal intentions by beating Brunei Darussalam 6-0.

Hosts Philippines, meanwhile, produced a gritty performance to grab a point in a goalless draw with Myanmar in Group A.

Vietnam won gold two years ago by the finest of margins, edging Thailand on goal difference after both finished on 10 points and the scenario could well be repeated in this edition.

Three places to the 2020 Tokyo Olympics will be up for grabs in January's AFC U23 Championship Thailand 2020, with both hoping to earn spots.

Thailand will be defending the gold they won for a 17th time in Kuala Lumpur 2017 while Vietnam will be aiming to continue their recent dominance in Southeast Asia.

The two will have an early meeting, having been drawn in Group B along with Indonesia, Laos, SIngapore and Brunei Darussalam.

Group A consists hosts Philippines, Malaysia, Myanmar, Cambodia and Timor-Leste. Join the-AFC.com as we profile the teams ahead of Monday's kick-off.

In the men's competion, 16-time champions Thailand were drawn in Group B with Indonesia, Vietnam, Laos, Singapore and Brunei Darussalam.

Malaysia, who have won six SEA Games titles and were runners-up in 2017, were drawn in Group A with Philippines, five-time winners Myanmar, Cambodia and Timor Leste.