BBC: The family of UK-born American hostage Luke Somers have appealed in a video to al-Qaeda militants in Yemen to "show mercy" and release him.
In the online statement, his mother, Paula Somers, says: "Please... give us an opportunity to see our Luke again."
A man identifying himself as Mr Somers, who was abducted in 2013, appeared in a separate video on Wednesday, saying his life was in danger and asking for help.
The US has revealed it tried to rescue him last month.
"Regrettably, Luke was not present, though hostages of other nationalities were present and were rescued," the National Security Council said on Thursday.
In a video posted on YouTube, Mr Somers' mother and brother said he was "only trying to do good things for the Yemeni population".
"Luke is only a photojournalist and is not responsible for any actions the US government has taken," his brother, Jordan, said.
Noting that her son "appears healthy" in his captors' video, Paula Somers said: "We thank you for that." (+ video) » | Friday, December 05, 2014