Moscow (CNN) At least one person was killed after Russia's only aircraft carrier, Admiral Kuznetsov, caught fire on Thursday morning during repair work in Russia's Arctic Sea port of Murmansk, according to Russian state news agencies.

A further 10 people were injured and two are missing, Russian state news agency TASS reported

Footage of the fire onboard aircraft carrier Admiral Kuznestov shows black smoke rising above the decks of the ship.According 🇷🇺# Russian state news agencies,one worker remains unaccounted for.The same wires suggest the fire is spreading and now covers 600 sq metres of the ship. pic.twitter.com/H840i8uwhI — Capt(N) (@Capt_Navy) December 12, 2019

The fire broke out as welders were working during maintenance in the first power unit. A thick plume of black smoke was seen from the upper deck.

The area affected by smoke and fire covers 120 square meters (1,292 square feet), TASS said.

is the Russian navy's largest warship and its sole aircraft carrier. Admiral Kuznetsov , a ski-jump type aircraft carrier,is the Russian navy's largest warship and its sole aircraft carrier.

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