Officials in Yemen say at least seven foreign hostages seized last week, including at least one child, have been found dead.
The seven are thought to be from a group of nine foreigners kidnapped last week in a mountainous northern area. The group comprised seven Germans, a British national and a South Korean.
One report says all nine hostages have been killed, but the deaths have not been confirmed by officials in Berlin, London and Seoul.
Yemen has blamed the kidnapping on a local Shia rebel group.
More than 200 foreign nationals have been kidnapped in Yemen in the past 15 years, but most have been released unharmed.