Blinken: U.S. is looking to Turkey to pull Russia back to Black Sea grain deal
By Meredith Lee Hill
Nato steps up Black Sea patrols to counter Russian threats to ports and ships
By Henry Foy, John Paul Rathbone & Felicia Schwartz
NATO says it's boosting Black Sea surveillance, condemns Russian grain deal exit
By Andrew Gray, William Maclean & Ron Popeski