This was the first collision to occur on the Kelana Jaya line since services began in 1998, as well as the worst railway accident in Malaysia to date.

During the process, both the hostler and control centre overlooked and missed critical procedures, causing the train to drive on the wrong direction heading northbound to Gombak.

An initial statement from Dang Wangi District Police Chief, ACP Mohamad Zainal Abdullah states that the collision was likely caused by a miscommunication from the operations centre at Lembah Subang.

[3] Prime Minister Muhyiddin Yassin ordered for passengers injured in the collision to be given first priority in treatment, and also directed the Ministry of Transport and service operator Prasarana Malaysia to commence investigations.

[9][10] The Kelana Jaya line resumed operations at 6 am the next day with trains running on a single track between Damai and Pasar Seni stations and supported by feeder buses.

At a press conference held the next day, Tajuddin further stated that Prasarana will cover all victims' medical expenses till they are discharged.

In addition, he made racist remarks to a Chinese news reporter that was asking him some questions regarding to the incidents leading up to the head on collision.