The Penang state government should look into several matters before proceeding with plans to build a third bridge to replace the undersea tunnel, said Senior Works Minister Fadillah Yusof.

"In the implementation of any project, we should look at a number of things, in particular the preliminary study on the need of the project," he said.

He said things to look at include the social-economic impact, effects on the environment, and a cost-benefit analysis.

"I refuse to comment further because...