In a Facebook post, the company said KTM Komuter services from Pulau Sebang to Batu Caves, Tanjung Malim to KL Sentral, and the Electric Train Service (ETS) will continue to operate as usual.

A new date for the upgrading work will be announced later.

Yesterday, KTMB had announced that its KTM Komuter services in the Klang Valley could face delays of up to 50 minutes due to the planned upgrade.

The announcement drew criticism from netizens who questioned the timing of the works when more were expected to use the public transport service due to road closures for the Asean Summit.

The Asean Summit will be held at the Kuala Lumpur Convention Centre on May 26 and 27, with foreign delegates arriving in the country from tomorrow onwards.

Last week, communications minister Fahmi Fadzil urged Klang Valley residents to use public transport during the summit to help ease traffic congestion due to road closures.