Five persons, including a Youtuber from Jharkhand, have been arrested for alleged involvement in two cyber fraud cases in Mumbai, a police official said on Sunday. In the first case, a person from Gamdevi in south Mumbai was duped of Rs 89,000 after he ordered a tiffin online, the official said. In the second case, a man, also from Gamdevi, lost Rs 1.5 lakh after her was asked to pay his electricity online on February 4-5, he said.