Prime Minister Datuk Seri Najib Tun Razak advised the people to keep properly hydrated and stay indoors if possible as the haze is back.

"As the haze is back, keep yourself properly hydrated, stay indoors if possible and avoid strenuous outdoor activities," he tweeted here today.

Click here for the photo album on the haze.

As at 6 pm today, Department of Environment website updated that there are five areas recorded unhealthy Air Polution Index (API) readings, with Banting, Selangor recorded the highest at 128.

Other affected areas including Nilai with API reading at 105, Pelabuhan Kelang (112), Cheras (101) and Putrajaya (116).

Yesterday, Natural Resources and Environment Minister Datuk Seri G.Palanivel said the haze, which is affecting several areas of the west coast in the peninsular, including the national capital, was caused by burning activities in central Sumatra, Indonesia and spread to Malaysia through the southwesterly
winds.