Pro-Ukraine activists block repair of sabotaged power lines to Crimea

An employee works at a shopping centre, with power turned off inside, in Simferopol, Crimea, November 23, 2015.REUTERS/Pavel Rebrov

KIEV (Reuters) - Pro-Ukrainian activists prevented repairs to sabotaged power lines leading to Crimea on Monday, keeping the Russian-annexed peninsula starved of electricity for a second day and tensions between Moscow and Kiev high.

Ethnic Tatars and members of Ukrainian nationalist battalions stopped Ukrainian engineers fixing four pylons blown up by unknown attackers over the weekend in Kherson, a region of the Ukrainian mainland controlled by Kiev.