US soldier who was arrested, accused of spying for Russia identified: Source

He is an Army personnel officer.

The U.S. soldier who officials say was entrusted with sensitive information and was arrested in the United Kingdom on suspicion of spying for Russia is 41-year-old Lt. Col. Brandon Tyner, according to a source familiar.

Tyner, who is an Army personnel officer, was arrested on Tuesday and remains in British custody.

This is a developing story. Please check back for updates.