Nord Stream leaks: Mystery leaks and Ukraine allegation of 'terrorist attack' explained

The video released by Denmark's armed forces shows bubbles rushing to the surface of the Baltic Sea above the Nord pipelines. These leaks have caused surface disturbance of more than 1 kilometre in diameter. While the leaks remain largely unexplained, Ukraine has accused Russia of causing leaks in what it described as a "terrorist attack". Is it a terrorist attack? What is its impact? Watch to know more.