An explosive device detonated near a polling station in Catasauqua, Pennsylvania, on Tuesday morning, rattling voters during the state's primary election. Pennsylvania State Police (PSP) reported that no one was injured and that the polling site remained open, but the incident raised fresh concerns about election security.

The device was thrown from a moving vehicle around 9:15 a.m., according to police, just over two hours after polls opened at 7 a.m. The blast occurred half a block from the Salem United Church of Christ, which served as the polling location for the 3rd District in this small eastern Pennsylvania town.

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Kelsey Allen, a local resident, told Fox 29 that the device detonated under her car as she drove down the street. “Right as I turned left, whatever the explosive was, it goes off, goes all over the front of my car,” she said. “And I’m so glad I had my window up because it was literally right there.” Allen was not injured and reported no damage to her vehicle.

PSP said in a statement that “no information exists” to link the explosion to the polling center, and Lehigh County Executive Josh Siegel described it as an “isolated incident from everything we can determine,” according to Votebeat. No arrests had been made as of Tuesday evening, and the investigation remains active.

The road closure that followed the incident had a noticeable impact on voter turnout. Louis Draxler, the Catasauqua Judge of Election for the 3rd District, told local station ABC 6 that traffic was steady before the explosion. “Prior to all of this happening, we were getting a steady stream of people in,” Draxler said. “Since this has occurred, and the streets are all blocked off, we’re getting very few people coming in.”

Catasauqua, a suburb of Allentown with a population of about 6,500, sits in Pennsylvania’s 7th Congressional District. Tuesday’s primary featured Democratic candidates vying to challenge incumbent Republican Rep. Ryan Mackenzie. Retired firefighter and union leader Bob Brooks won the Democratic nomination with 41.7 percent of the vote, setting up a general election matchup against Mackenzie in November, according to Decision Desk HQ.

Threats to polling places are not new. The Brennan Center for Justice documented at least 227 bomb threats made to voting centers across the country during the 2024 election cycle, including several in Pennsylvania. This incident underscores the ongoing challenges election officials face in ensuring safe access to the ballot box.

For broader context on Pennsylvania’s political landscape, the state’s governor’s race is set for a Shapiro vs. Garrity showdown in November, and recent House primaries have set the stage for key battleground races that could influence control of Congress.