War risk underwriters are writing new business for the Ukraine Black Sea grain shipments after Russia said it would support the trade again.

Broker Marsh has said its joint cargo war risk facility provided with Ascot Insurance is now "back in play", hours after the announcement from Russia.

Other underwriters are expected to follow.

Inspection clearance is a key condition of war risk cover and, while Russian surveyors were no longer inspecting ships, insurance could not be placed.