Security has been increased around Chicago Jewish facilities after two separate incidents of attempted arson and vandalism targeting local synagogues over the weekend.

Police confirmed that an unknown assailant attempted twice to set ablaze the Congregation Anshe Sholom B’nai Israel in Chicago’s Lakeview neighborhood overnight Saturday, after worshipers who arrived Sunday morning reported broken glass and charred black rags outside the building.

No one was injured and there was no damage to the synagogue.

Chicago police later said they were also investigating vandalism outside a number of synagogues in the city’s West Rogers Park neighborhood after cars parked on the street were discovered with smashed windows.

Police spokesman Anthony Guglielmi said that Jewish facilities in the city would receive “special attention” while the string of suspected hate crimes were investigated.

The incidents in Chicago come on the heels of a string of three arson attacks targeting Jewish centers in the greater Boston area.