At least five predominantly black churches have caught fire in the last week, including at least three that have been the subject of arson, the Southern Poverty Law Center reports.

The string of blazes, which have occurred in four Southern states and Ohio, comes a week after nine people were gunned down at a Charleston, South Carolina, church. Dylann Roof, 21, has been charged with nine counts of homicide and possession of a firearm during commission of a violent crime.

An arsonist set fire to the College Hills Seventh Day Adventist Church in Knoxville, Tennessee, on Monday. The following day, God’s Power Church of Christ in Macon, Georgia, was gutted by flames. And on Wednesday, Briar Creek Baptist Church in Charlotte, North Carolina, was deliberately set ablaze, causing more than $250,000 in damage.

Briar Creek Pastor Mannix Kinsey told a local news station he hopes the event turns out not to be a hate crime, and the culprit is "already forgiven," but he's worried about "the climate."

“We are still talking about this same issue and this is 2015,” he said. “We all have to consider what else do we need to do to actually be able to work together.”