PHOENIX (AP) — Acting Veterans Affairs Secretary Sloan Gibson will be looking for answers when he visits the troubled VA hospital in Phoenix, which has been at the heart of allegations of delayed treatment and even deaths there.

A former clinic director has said that up to 40 veterans may have died while awaiting treatment.

Gibson will tour the facility and talk with officials in Phoenix later today.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.