The US has said it "seems" Russia is to blame for this week's leaks in the Nord Stream gas pipelines. US Energy Secretary Jennifer Granholm told the BBC an investigation was being carried out into the cause of what she called "an act of sabotage", adding "it is highly unlikely that these incidents are coincidence" No evidence about how the leaks happened has been made public. Russia has dismissed suggestions that it was to blame. President Putin described the damage as "unprecedented sabotage, in fact, an act of international terrorism" during a phone call with Turkey's President Erdogan, according to...