Firefighters working on a blaze on West 10th Street in Jamestown.

A rash of arson attacks in the past 48 hours has city investigators scrambling to find potential links — and more importantly, suspects.

Captain Robert F. Samuelson, division commander of the Jamestown Police Department, said the fires are “no question” a result of arson, and investigators are currently narrowing down suspects.

“We have received several tips from the public, but are still seeking more information,” he said.

The string of attacks reportedly began Thursday, when the Jamestown Fire Department responded to a structure fire at 621 E. Sixth St. This was the third report of a fire at the home in the past three weeks. Police did not confirm, however, if the previous two fires were due to arson.

The attacks continued Friday, with crews responding to a 650 E. Sixth St. address shortly after 11 p.m., just a few houses down from Thursday’s fire. Responding crews found heavy smoke coming from the vacant property and off-duty personnel were called to assist.

At about 12:15 a.m. Saturday, city firefighters were alerted to another structure fire at 220 Crossman St. Many of the incoming off-duty crews were dispatched to the residence, also vacant and condemned.

About an hour later, fire dispatch received multiple reports of a possible illegal burn near 30 W. 11th St. After extinguishing a small fire outside, crews noticed smoke coming from a nearby residence at 22 W. 11th St. Firefighters made entry into the structure and encountered another blaze, at which time all remaining off-duty personnel and first responders from Celoron were requested.

Around 2 a.m., a fire dispatcher notified personnel of another structure fire at 33 W. 10th St. After making an initial entry to stop the fire from spreading, firefighters were forced to evacuate due to deteriorating conditions, fire officials said.

All residences appeared to be vacant homes, which according to police, are prime targets for arsonists.

No injuries were reported.

Mayor Sam Teresi told The Post-Journal on Saturday that the arson attacks are “extremely troubling” and unusual for their quick succession.

“To have four in one evening and five in a matter of 48 hours is not typical at all,” Teresi said. “I do not think this is the ‘new normal’ for Jamestown. This was an extremely mindless, stupid and serious act, and it’s not solely about the destruction of property.”

“The biggest concern is about putting the safety of citizens, first responders and other city workers at risk, and also the impact it can have on an entire neighborhood.”

Teresi said he’s long described arson as a “scourge” in the city despite no indication of a skyrocketing trend.

In 2011, there were 22 arson cases in the city, followed by 25 in 2012; 13 in 2013; 20 in 2014; 31 in 2015; and 19 in 2016.

“This stuff has got to stop … and we are going to continue to do our best to make it stop,” Teresi said. “That’s the reason why our team is working so hard not only to deal with the situations of last night, but to also do the investigation, make the arrests and assist in the prosecutions.”

Teresi praised the response of the city’s team who he said worked “seamlessly and flawlessly” together during the last 48 hours.

“I want to reassure everybody that we have the best people in the business that are responding … and they really showed their stuff last night,” he said.

Teresi thanked Deputy Chief Chet Harvey and his team at the Jamestown Fire Department; Chief Harry Snellings and his team at the Jamestown Police Department; Vince DeJoy, director of development, who helped remove three of the affected structures; and Dave Leathers, general manager of the Jamestown BPU.

The mayor also expressed his appreciation for the agencies that assisted the city, including the fire and emergency crews from Celoron, Falconer, Lakewood, Kiantone, Fluvanna and the county.

Anyone with information on any of these incidents is asked to call 9-1-1 or leave an anonymous tip with the Jamestown Police Department at 483-TIPS (8477).