Thames Valley Police confirmed they have the situation "fully in hand" after both twin two-year-old girls were released after being held hostage at a house in Oxfordshire.
The girls' father, who was holding them hostage in the property, is believed to still be inside the property, the Oxford Mail reported.
Local Policing Area commander Superintendent Christian Bunt said:"We have the area contained and we have firearms officers that are deployed and are currently dealing with this incident".
More top news
A plane powered purely by solar power has taken off from Egypt for the final leg of the first ever fuel-free flight around the world.
Animal rights group PETA seizes 'teachable moment', warning Pokémon Go users the game is akin to animal cruelty.
A Labour MP has accused aides to Jeremy Corbyn and John McDonnell of a 'violation of privacy, security and confidentiality'.