Police say a fire in a chapel at Union Cemetery was deliberately set.

On Monday, police released images of the inside of the charred historical building in hopes of finding the suspects.

People noticed smoke coming out of the chapel at Union Cemetery in southeast Calgary on March 29 at about 3:30 p.m. MT.

"Witnesses observed two males running from the church as smoke began pouring from the windows and doors," police said in a release.

"Fire crews worked quickly to contain the fire within the chapel. Once investigators were able to enter the building, they observed graffiti throughout the interior of the building." 

Damage to the historical building is estimated to be $100,000.

Union Cemetery

Police have released photos showing the results of arson in a Calgary chapel at Union Cemetery. (Calgary Police)

Union Cemetery

Damage caused by a fire inside the chapel at Union Cemetery. (Calgary Police)

Union Cemetery

Graffiti in the chapel at Calgary's Union Cemetery includes a pentagram in a circle. (Calgary Police)