An LPG filled tanker toppled on the road at Panakaje, near Madantyar, in Belthangdy taluk, Dakshina Kannada district on Friday afternoon.
The tanker was travelling on the Ujire-Charmadi ghat route towards Bengaluru.
It turned turtle at about 2.30 pm and liquid petroleum (LPG); which is highly inflammable is leaking out of the tanker.
All traffic on the ghat has come to a screeching halt.
Belthangdy fire services personnel have rushed to the spot and all efforts are being made to plug the LPG leak.
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