State executive councillor Izham Hashim said the identified slopes have become unstable due to excessive rainfall.

A majority of these slopes were identified as high risk just after the state was hit by massive floods last December.

“We have asked the public works department and the minerals and geoscience department to conduct more extensive monitoring and with current technology, landslide incidents like this can be minimised,” he told reporters today at the scene of a landslide at Taman Bukit Permai 2 in Ampang.

Yesterday’s landslide claimed four lives. Izham said the area had not been on the high-risk slope list.

“Usually when there is a landslide, there will be signals (indication) such as cracks and some rubble but in the incident at Taman Bukit Permai 2, there was no indication whatsoever, and it happened suddenly,” he said.

Izham ruled out a rockfall incident on March 9, near the Intan flats, Taman Bukit Permai, as being an early indication of yesterday’s landslide.

He said the rockfall incident took place some 4km from the site of yesterday’s tragedy.

“Just like this landslide in Taman Bukit Permai 2, there were no early signs of cracks (in the rockfall incident).”