Ukrainian strikes on a Moscow oil refinery, protests at the G7 summit, wildfires in Spain and Messi at the World Cup – the past seven days as captured by the world’s leading photojournalists Warning: this gallery contains images some readers may find distressing Ukrainian strikes on a Moscow oil refinery, protests at the G7 summit, wildfires in Spain and Messi at the World Cup – the past seven days as captured by the world’s leading photojournalists Warning: this gallery contains images some