A Malaysian Highway Authority (MHA) spokesperson said following the incident, MHA opened a contraflow lane at KM36.9 west bound to KM38.2 before the tunnel from 8.24am to 9.06am for works to remove the trailer.
“Works on removing the trailer have completed and the lanes in the tunnel were reopened at 9.06am but traffic is still congested.
"The trailer's driver was unhurt and the vehicle was only razed in the front section,” he said when contacted by Bernama today.
Meanwhile, a PLUS Malaysia Berhad spokesperson said traffic was reported to be slow moving from Tapah to Gopeng.
Members of the public can obtain the latest traffic information via toll free Plusline at 1800-88-0000 and MHA at 1800-88-7752 or via Twitter at www.twitter.com/plustrafik