Leaders of the Association of Southeast Asian Nations have kicked off a 2-day summit in Manila.
One of the most pressing issues on the agenda is North Korea's nuclear and missile development. The leaders will also discuss a range of other political and economic issues.
In addition to the 10-member nations, representatives for Japan, China and the United States are in attendance.
Japanese Prime Minister Shinzo Abe and US President Donald Trump are expected to call for more pressure on dealing with North Korea, while China is likely to stress the need for dialogue.
The leaders are also expected to discuss China's maritime activities in the South China Sea.
Beijing has been building artificial islands in the area, despite overlapping claims by Vietnam, the Philippines and other parties.