"Seeing that the people of Oklahoma are rethinking their safety after such terrible events is another wake up call about why the big oil and gas interests shouldn't dominate our thinking on energy… We should look at the experiences in other parts of the world such as in this area of America and the ban on fracking in Scotland should become permanent," McLeish said as quoted by The Herald Scotland newspaper.
He added that that there were no reason why Scotland should implement fracking as it should not "ignore the plight of others" and to harm the movement aimed at promotion of renewable energy.
Hydraulic fracturing is a technique of extracting shale gas and oil by injecting pressurized toxic liquid into the ground.
The Scottish government announced its moratorium on fracking in January 2015, however different Scottish politicians had repeatedly called for introduction of a legal ban.
