Donghai Island-class flow-on/flow-off ship

Donghai Island class flow-on/flow-off ship is a class of little known naval auxiliary ship currently in service with the People's Liberation Army Navy (PLAN). The name of this class is after the first unit commissioned, with the exact type still remains unknown, and only a single unit of this class have been confirmed in active service as of mid-2010s, with pennant number 868. The flow-on/flow-off capability of the Donghai class is achieved via its semi-submersible hull design.