Sources say the Japanese government is making arrangements to provide the Philippines with maritime surveillance radar and other equipment under the new Official Security Assistance framework. If realized, it will be the first application of the plan.

The government launched the OSA framework in April to provide defense equipment and other supplies to like-minded countries to enhance security cooperation.

Japan's government is seeking to strengthen ties with the Philippines, as both nations are wary of China's increasing maritime activities.

Tokyo is also considering the possibility of starting negotiations with Manila to conclude a Reciprocal Access Agreement. The agreement is designed to arrange in advance numerous details needed for Japan's Self-Defense Forces and the Philippine military to conduct joint drills and other activities.

Japanese Prime Minister Kishida Fumio is expected to discuss the matter with Philippine President Ferdinand Marcos Jr. at a summit in Manila on Friday.