Japan's Maritime Self-Defense Force says it will dispatch a special security unit to the Indo-Pacific region to offer capacity-building support to coast guards in the region.

The MSDF says the dispatch will come in May or later to help regional coast guards enhance their capabilities in conducting inspections of suspicious ships and other skills.

It has not revealed details on exactly where the unit will be sent and how long the mission will be.

Sources close to the defense ministry say the move comes in response to requests from multiple Pacific island nations, and that the special unit will provide support for several days for each nation.

This will be the first time for an SDF special unit to provide capacity-building support for foreign agencies.

The MSDF special security unit was first formed in 2001, becoming the first special unit of the country's Self-Defense Forces. It is tasked with stopping and inspecting suspicious ships, among other duties.

The dispatch of the unit seems to reflect Japanese officials' hopes of strengthening ties with Pacific island nations, as China has been increasing its influence in the region through investments and support.

The MSDF Chief of Staff, Admiral Sakai Ryo, told reporters that the special security unit has a wide range of capabilities, but it will provide basic capacity-building support in the coming mission.

He said he thinks the dispatch will not cause any concerns or doubts among other countries.