The Kuala Lumpur–Singapore high-speed rail (HSR) was a proposed railway project to link Kuala Lumpur, Malaysia to Singapore via a high-speed rail line. It was first proposed by then Malaysian prime minister Najib Razak in September 2010. Singapore prime minister Lee Hsien Loong formally agreed to the joint project in February 2013, with the HSR originally expected to be completed by 2026.