A West Fork woman faces felony charges after investigators said she built a bomb as part of a plot to murder her husband.
Deputies arrested Shirley Mugley, 40, of 14020 S. Arkansas 265 in in connection with felony conspiracy to commit murder, criminal use of prohibited weapon and criminal use of explosives.
Also arrested was Andrew Cox, 20, of 850 S. Silverado Drive in Fayetteville in connection with felony criminal use of a prohibited weapon.
Washington County deputies investigated a report of an explosive device found in the Hogeye area on April 20.
According to a news release from the sheriff's office, a pipe bomb was found in the Illinois River.
Results from the Arkansas State Crime Lab revealed that the device "was functional," according to an arrest report.
During the course of the investigation, deputies identified Mugley as a "person of interest," based on video surveillance, domestic history and cellphone information, the report said.
Cox, who had a "previous romantic relationship" with Mugley, disclosed a plot to commit murder by using an explosive device on a car operated by Mugley's husband, the report said.
Deputies said Cox accompanied Mugley when she bought materials to manufacture the device.
According to the report, Cox said Mugley built the device in the basement of her home on Arkansas 265.
Video surveillance revealed the Mugley bought a cellphone matching the description of the cellphone attached to the bomb, the report said.
During a recorded phone call, Mugley discussed the details regarding the bomb and the conspiracy to commit murder on Mugley's husband, the report said.
Investigators executed a search warrant on Mugley's home on Thursday and seized items consisted with manufacturing the explosive device, deputies said.
Washington County Sheriff Tim Helder said more information will be available during press conference today at noon.