Two data cables running across the land border between Sweden and Finland have been repaired, a day after they were damaged affecting 6,000 private customers and 100 businesses, a company providing digital infrastructure and data communication in Northern Europe said Tuesday.

A fibre optic cable connecting Finland and Sweden has been cut, leading to internet outages and suspicions of sabotage.

Sweden has formally asked China to co-operate with an investigation into damage to two cables in the Baltic Sea last month. The cables - one linking Sweden to Lithuania and the other between Finland and Germany - were damaged in Swedish territorial waters in the Baltic Sea on 17 and 18 November.