 The second Masjid Jamek rapid transit station was opened on 1 June 1999 as part of the second phase of the Kelana Jaya Line (then known as PUTRA LRT) (known as Section 2).The Kelana Jaya Line station, like other stations along the subway stretch of the Kelana Jaya Line, is an underground rapid transit station that consists of a single island platform (separated from the tracks by platform screen doors) connected to a single ticketing concourse via stairways, escalators and an elevator.The main entrance of the Kelana Jaya Line station was situated directly north of the Ampang and Sri Petaling Lines station, exiting into "Jalan Melaka", and "Jalan Melayu" via a footbridge over the Klang River.