In Video : Saint-Sulpice Church in Paris Caught on Fire.

Historic St. Sulpice church caught fire in Paris on Sunday. The blaze had damaged the main door as well as an internal staircase.

Twenty firefighters arrived at the scene to put out the fire that had engulfed the church, which was completed in the 19th century, the French BFMTV reported Sunday.

Witnesses turned to the social media to share their footage of the inferno.

THE SAINT SULPICE IN PARIS JUST IGNITED WHILE I WAS INSIDE pic.twitter.com/40PHCZ177w

— lil g (@lili_gasparr) March 17, 2019

Following the incident, several people were evacuated from the church. According to preliminary data reported by BFMTV French television, fatalities and injuries were prevented thanks to the efforts of the firefighters.

ALERTE – L'église #SaintSulpice, dans le 6ᵉ arrondissement de #Paris, est actuellement ravagée par un incendie. (agneswebster – Instagram) pic.twitter.com/ObmaR5fhuy

— Infos Françaises (@InfosFrancaises) March 17, 2019

What caused the blaze remains unclear.

Saint Sulpice is considered an architectural masterpiece; it is the second-largest church in the French capital.