An al-Qaeda-linked group on Sunday claimed to have killed a number of Shiite Houthi militants in Yemen's central Radaa city.
Ansar al-Sharia group said on Twitter that its fighters had detonated a bomb at a Houthi patrol in Radaa on Friday, leaving several militants dead.
There has been no comment from the Houthi group.
Yemen has recently appeared to be on the verge of civil war, as the Houthis seek to expand their control beyond capital Sanaa, which they took over in late September.
The Houthis' growing influence in the country has pitted it against both Al-Qaeda – said to be active in politically fractious Yemen – and allied Sunni tribes.
Recent fighting between the warring camps in the country's central and western regions has left dozens dead.
