Serbian President Aleksandar Vucic pledged on Sunday his country would help investigate after an explosion in Kosovo that disrupted water supplies and that the government there blamed on Belgrade. The explosion on Friday evening hit a canal that sends water to Kosovo's two coal-fired power plants - accounting for most of the country's power production.

A blast on a canal vital to Kosovo's water and power supplies has sparked a war of words with Serbia, with fears it could further escalate tensions between the two Balkan nations.The explosion late Friday punched a hole in a canal providing water to hundreds of thousands of people and the cooling systems at two coal-fired power plants that generate most of Kosovo's electricity.

Serbian President Aleksandar Vucic on Sunday denied that Belgrade had masterminded a strike on Kosovar infrastructure, saying Kosovo itself had mounted a "hybrid attack" against his country.