Baltimore County police say a Woodlawn man accused of pushing his sister out of a moving car onto the Baltimore beltway has been arrested.

Witnesses tell police that 30-year-old Kareena Jeneya Hall and her 35-year-old brother were arguing as they traveled on the outer loop of Interstate 695 around 6:45 p.m. Sunday.

As the Toyota Camry approached the Security Boulevard exit, police say Hall's brother pushed her onto highway without slowing.

Police spokesman Cpl. Mike Hill says Hall was listed in critical condition at Shock Trauma on Monday.

Police went to Hall's home and saw a Camry pull up. Police determined Hall's brother was driving when she was ejected from the car. Police expect to charge Hall's brother Monday.