The FBI is investigating a stabbing in Virginia on Saturday, after Roanoke County police said witnesses heard the attacker yell “Allah Akbar” while assaulting a man and a woman with a knife, the Washington Post reported.

Wasil Farooqui, 20, fled the scene but was arrested when he arrived at the same emergency room where the victims sought treatment, the Post reported. He has been charged with two counts of aggravated malicious wounding.

Roanoke police said the attack appeared to be random. The FBI is investigating the incident.

“The FBI is working with the Police Department following the incident that occurred on Saturday evening,” the head of the FBI’s Richmond field office, Special Agent in Charge Adam Lee, said in a statement, according to ABC News. “While I cannot discuss details of the investigation at this time, I do want to reassure the community that we are working to determine the nature of the incident.”

Get The Brief. Sign up to receive the top stories you need to know right now. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Write to Katie Reilly at Katie.Reilly@time.com.