WASHINGTON - Beau Biden, son of Vice President Joe Biden, is undergoing medical evaluations in Houston after suffering from "disorientation and weakness" on a family vacation, the vice president's office said in a statement Monday night.

The vice president traveled to Houston on Monday morning to be with his son and will remain in Houston on Tuesday.

"This morning, the vice president accompanied his son Beau Biden to Houston, Texas, where Beau is being evaluated to determine the cause of an episode of disorientation and weakness that he experienced while on vacation with his family last week," the vice president's office said in a statement.

The Delaware Department of Justice said Monday that Beau Biden, the state's attorney general, first experienced weakness and disorientation after driving to Indiana for a family vacation on Wednesday and was admitted to Northwestern University Hospital. He traveled to Philadelphia to meet with his doctor at Jefferson University Hospital on Thursday before spending the weekend at home in Wilmington.

On Tuesday, Beau Biden tweeted a photo of him and his wife, Hallie, in Houston thanking those who had wished him well as he undergoes an examination.

Touched by all your well wishes-thank you. Nice evening in Houston w/ Hallie; will share update when we have it. -bb pic.twitter.com/n1iT7oUHHM

- Beau Biden (@BeauBiden) August 20, 2013

Beau Biden suffered from a mild stroke in 2010 at the age of 41.

Charles Dharapak/AP Photo