after the storm system devastates cuba. welcome to bbc news broadcasting to viewers in the uk and around the world. the leaders of denmark, sweden and poland say that rare gas leaks that have hit the nordstream pipelines seismologists reported underwater explosions just before the leaks. nord stream one is leaking at two points, a day after a similar leak affected its sister pipeline, nord stream two. the danish authorities have warned ships to avoid the area near the island of bornholm. i just want to show you these pictures from denmark s defence command, which show bubbles on the surface of the baltic sea above the pipelines they report the largest patch of sea disturbance is 1km wide. well earlier the polish prime minister, went a step further and linked the incidents to the situation in ukraine. translation: we do not yet know the details of what happened - but we clearly see that this is an act of sabotage. this is an act that probably signals a new phase in the escalat