Watch: Taiwan unveils first domestically-built submarine

President Tsai Ing-wen presided over the launch in the port city of Kaohsiung on Thursday.

The vessel, which cost $1.54 bn (£1.27bn) to build, has combat systems and torpedoes sourced from US company Lockheed Martin.

Military officials say it will undergo several tests before being delivered to the navy by the end of 2024.

28 September 2023