THE BRONX - An increasing number of high school students are victims of cyberbullying outside of school, a social worker in the Bronx tells News 12.

Cyberbullying is becoming worse than bullying at school because it can happen any time of day, says Jenna Cooper, who works at the Fordham-Tremont Community Mental Health Center of St. Barnabas Hospital.

Cooper says bullying over the Internet can affect everyone from young children to adults.

The National Crime Prevention Council reported in 2011 that cyberbullying affects almost half of all American teens.

Parents can help prevent cyberbullying by monitoring their children's online activities and talking openly about the issue with them.