to want such a thing. welcome back. you re watching bbc news. i m shaun ley with the latest headlines. the world men s tennis number one, novak djokovic, is due to present himself to border officials as he continues to fight against deportation from australia. number 10 apologises to the queen over fresh revelations of parties held at downing street this time on the night before prince philip s funeral. washington and kyiv have accused russia of preparing to carry out false sabotage operations to create a pretext for an invasion of ukraine. to create a pretext the pentagon said moscow had sent a group of trained operatives into eastern ukraine who could carry out acts of sabotage against russia s own proxy forces there. ukraine s defence ministry said russia was plotting to stage similar operations in neighbouring moldova. the kremlin has denied the reports. but speaking at a news conference, the pentagon press secretary,