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BRUSSELS (Reuters) - EU foreign policy chief Federica Mogherini said EU foreign ministers will listen on Monday to British Foreign Secretary Boris Johnson, who is due to address a meeting in Brussels on the nerve agent attack on a former Russian double agent.

“He will debrief the ministers, we will have a discussion and... I think, I expect you will hear from us together in the course of the morning with a joint position (on the issue),” Mogherini told reporters, referring to a common EU statement expected later on Monday.

“I always expect unity,” she said of EU solidarity for Britain over the issue.