Prime Minister and presidential front-runner Vladimir Putin warned Western leaders against a military strike on Iran in the latest of a series of articles published before Russia’s March 4 elections.

“Without a doubt, Russia is concerned about the growing threat of a military strike on this country,” Putin said. “If this happens the fallout would be truly catastrophic.”

Officials from the International Atomic Energy Agency were denied access to Iran’s Parchin military base earlier this month, raising concern over a weapons component to the country’s atomic program that the U.S. and Israel have signaled might prompt an attack.