A convicted sex offender wearing a costume has been arrested for allegedly bothering children and offering them candy at a San Diego-area Halloween event.

Authorities say 29-year-old Danny Shaw wore white face-paint with red stripes simulating blood at a Trick or Treat party in rural Ramona where there were more than 1,000 children.

San Diego County sheriff's investigators say Shaw approached families and insisted on giving them candy, but the parents refused it.