(CNN) -- Federal authorities have arrested a man in connection with the firebombing of an Oregon Islamic center, the U.S. attorney's office said Thursday.
A news conference is planned for 11 a.m. (2 p.m. ET) to discuss the arrest of Cody Crawford. No other details were immediately available.
A blaze erupted at the Salman Al-Farisi Islamic Center in Corvallis after the FBI arrested Mohamed Osman Mohamud, who was accused of plotting, unsuccessfully, to bomb a Christmas tree-lighting ceremony in Portland last November.
Mohamud attended Oregon State University in Corvallis and sometimes attended the Islamic center's mosque.
No one was hurt in the attack on the mosque but it heightened tensions in Corvallis and prompted a probe into whether the mosque attack was an act of revenge for the Christmas tree plot.
The FBI identified Crawford as a person of interest in the investigation but made the arrest only Wednesday, according to CNN affiliate KOIN.
CNN's Shawn Nottingham contributed to this report.