A solemn group of Christians held their first prayer service in years on Saturday in the ravaged church of St. Mary in Syria's eastern Deir Ezzor city.

Stones, strips of wire, papers and remnants of rockets were strewn across the church floor, and bright sunlight streamed in from the blown-out windows. Holding thin white candles under pockmarked archways, the congregation of less than two dozen worshippers relished their first service in nearly six years. Fighting has gripped Deir Ezzor since rebels captured part of the city in 2012, and grew worse when the Islamic State jihadist group shot to prominence there in 2014. Syrian troops recaptured the entire city in November and residents have slowly begun to trickle back. Saturday's service -- which was also attended by Muslim clerics -- was led by the silver-haired Syriac Orthodox Patriarch of Antioch, Ignatius Aphrem II. He presided over the service from behind a small table draped in a white cloth, as the church's altar had been badly damaged.