Operations have been initiated to rescue those trapped and seven persons who were injured have been rushed to the Colombo National Hospital.
In addition to the tri forces, the STF and a SLAF helicopter have also been deployed.
Meanwhile, the ministry of Power states that electricity in the Meethotamulla area has been disconnected to minimise further hazards in the stricken area and generators are being used instead.
The government also urges public to refrain from thronging to the stricken area to see the disaster.
Meanwhile, residents have protested against a group which included minister A.H.M. Fowzie, when they had visited the stricken area.