The bodies of two British hostages handed over in Iraq have been identified, the BBC has learned.
The families have been told, and are being given time to inform their relatives, the BBC's security correspondent Frank Gardner said.
The names of the two hostages are expected to be released later today.
IT consultant Peter Moore, from Lincoln, and four security guards were captured by armed militants at the Ministry of Finance in Baghdad in 2007.
The Foreign Office said it had "grave concerns" over the safety of the three other men still thought to be held by the kidnappers, our correspondent said.
"This is incredibly tough for the families because there really was so much optimism," he added. "This was a blow out of nowhere."
Frank Gardner, BBC security correspondent
"It does appear the two hostages died some time ago.
It's not yet known how they died, and we've go
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