The older of two brothers suspected in the Boston Marathon bombings bought the pyrotechnic devices from a Phantom Fireworks store in New Hampshire, according to published reports.
The Wall Street Journal is reporting that Tamerlan Tsarnaev on Feb. 6 bought two "Lock and Load" mortar kits at the Youngstown-based company's Seabrook, N.H., store.
The kits cost $200 each, according to William Weimer, a vice president of Phantom.
This is not the first time items from the local company have been used in attacks or would-be attacks.
In 2010, Faisal Shahzad tried to set off fireworks at New York's Times Square. Those explosives were purchased at a Phantom store in Pennsylvania.
"We've been around this block before, in having an alleged criminal purchase from us," Phantom President Bruce Zoldan told the Wall Street Journal, adding the company was "very happy" to cooperate with authorities.
Tsarnaev's younger brother and fellow suspect, Dzhokhar Tsarnaev was charged Monday with using a weapon of mass destruction to kill in the bombings. He could face the death penalty if convicted.