South Korea and the US have strengthened naval cooperation against North Korean submarines after North Korea’s torpedo attack on a Seoul warship.

As part of the cooperation agreement, the navies of both countries will strengthen joint anti-submarine exercises and intelligence sharing while monitoring North Korean submarines, according to yonhapnews.

The two navies will also work together in a US-led anti-proliferation exercise aimed to stop North Korean vessels operating in South Korean waters.

South Korean Navy Chief of Staff Admiral Kim Sung-chan said the agreement would lay the groundwork for the navies of the two nations to consolidate the bilateral alliance.

The US and South Korea are awaiting Security Council actions against North Korea over the Seoul warship attack and have postponed joint navy drills, which were originally scheduled for early June.