Russia said on Tuesday it is preparing to reroute grain shipments from the Sea of Azov after several vessels came under Ukrainian attacks in the sea last week, raising concerns over disruption to a route that handles about a quarter of its grain exports.

Russia said Tuesday it was looking at “alternative shipping routes” and could limit traffic in the Azov Sea due to intensifying Ukrainian strikes, as Kyiv

Russia is preparing to reroute grain shipments away from the Sea of Azov following Ukrainian drone attacks on tankers, ferries, tugboats and other vessels.