The Mobile Fire-Rescue Department is crediting a “quick response and fast action” by firefighters Thursday from preventing a blaze from engulfing an entire downtown city block.

The agency, in a Facebook post Friday, reported that the response to the blaze to an abandoned building in the 400 block of Dauphin Street kept it from spreading to the connected buildings on Dauphin Street.

Mobile Fire-Rescue Department units were dispatched to the fire at around 9:35 pm Thursday.

According to the agency, the first units on scene reported heavy fire and smoke coming from an abandoned, two-story brick building that is within a block-long series of buildings on Dauphin, between Franklin and Hamilton streets.

The building is less than one block from the Cathedral-Basilica of the Immaculate Conception, and is connected to a longtime downtown furniture store.

A photo shared on social media Thursday showed the extent of the blaze.

According to Mobile Fire-Rescue, the first-arriving companies on scene immediately requested an upgrade to a two-alarm response. Units used an exterior attack and streams of water to bring the flames under control, but with heavy fire, a third alarm was called.

Firefighters made entry with hand lines to the adjacent buildings where the fire had spread, according to the agency, at which point they were able to contain the blaze. Buildings on both sides suffered damage to upper floors. No estimate of damages has been provided.

Crews remained on scene to cool down hot spots.

No injuries were reported and the fire remains under investigation.