An envelope containing white powder was sent to a mosque in the City of Groton and a second package with a suspicious substance was found inside a Meriden business, authorities said. No one was injured.
A 43-year-old man was exposed to the powder when he opened the envelope at about 8:45 a.m. at the Islamic Center of New London, at 16 Fort St., the city said.
Authorities believe the envelope was one of a spate of packages containing white powder that sent out statewide earlier this month and discovered in various public buildings, including a state office building and the federal courthouse in Hartford.
The envelope in Groton was postmarked before Sept. 5, the date on which a suspect in the white powder incidents was taken into custody, authorities said.
Gary Joseph Gravelle, 51, has been under federal investigation since the incidents, but has not been charged, according to authorities.
The powder in Groton was seized and sent to a state lab for analysis, authorities said. Fort Street was closed for several hours as police investigated. The FBI continues to investigate the incident as a hate crime, the city of Groton said.
Members of the state police Emergency Services Unit, the state Department of Energy and Environmental Protection and the Ledge Light Health District, the regional health district, were called to the scene.
Later that afternoon, a suspicious substance was found in a package at The Money Source in Meriden, police said. A hazardous materials team responded to the scene on South Broad Street and three people were quarantined.
Courant staff writer Ruth Bruno contributed to this report.