(HealthDay News) -- Children who witness or are involved in a tragedy may have symptoms of post-traumatic stress disorder, although symptoms may differ from those in adults.

The U.S. National Alliance on Mental Illness mentions these potential warning signs of PTSD in children:

  • Having difficulty controlling emotions and reactions.
  • Having trouble beginning and maintaining relationships and friendships.
  • Having low self-esteem.
  • Having problems keeping up in school.