India’s move to restrict wheat exports is set to reverberate through global agricultural markets, exposing just how tight global supplies are after the war in Ukraine and threatening to drive up food prices even more.

The government said in a notification dated May 13 it will suspend overseas sales to manage its food security. This drew criticism from the agriculture ministers of the Group of Seven nations, who said that such measures make the world’s crisis worse.

The surprising thing is that India isn’t even a prominent exporter on the world stage. The fact that it could have such a major impact underscores the bleak prospect for global wheat supplies. War has crippled Ukraine’s exports, and now droughts, floods and heat waves threaten crops in most major producers.