Penang Chief Minister Chow Kon Yeow said the state will challenge Kedah's plan to "throttle" Sungai Muda if it adversely affects the water supply to Penang.

This was after Kedah Menteri Besar Muhammad Sanusi Md Nor yesterday announced water catchment projects that will throttle water in the Sungai Muda river that could affect its flow downstream.

Sanusi had previously hinted about the project when he claimed Penang may have to use "muddy water" if it does not pay raw water charges to Kedah.

Chow had largely ignored Sanusi's threats...