A second man is in custody in connection with the Alps murders, a French prosecutor said today.
"We discovered a great number of munitions, explosives and detonators at his house," he added, saying the man may be involved in arms trafficking and was likely the business partner of a 48-year-old man arrested earlier.
He could not confirm a direct link between the arrest and the al-Hilli deaths.
More top news
An 11-year-old boy has been found guilty of shooting dead an eight-year-old girl in a row over a puppy.
A picture of a mother and her two daughters posted on social media has left people wondering "who's the mum?".
A manhunt is underway after gunmen dressed in women's clothes and SWAT team uniforms attacked a boxing event in Dublin, leaving a man dead.