The Federal Bureau of Investigation is offering rewards of up to $15,000 in the search for culprits in arson attacks at three Catholic churches in El Paso that largely serve Hispanics and migrants.

The first blaze was set outside the St. Matthew Catholic Church on May 7. Exactly a week later, incendiary devices were thrown at St. Patrick Cathedral, a spokesman for the Diocese of El Paso previously told NBC News.

Then, on June 15, firefighters encountered heavy smoke coming from the main sanctuary of St. Jude Catholic Church. They found a broken window near the chapel’s altar.

“We are counting on assistance from members of the community to keep our city safe,” the FBI said in a press release Thursday announcing rewards of $5,000 for information on each arson attack,who admitted he was targeting people of Mexican descent.

Patrick Crusius, 21, of Allen, Texas, was indicted on capital murder charges earlier this month in connection to the mass shooting on Aug. 3.

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