At least twenty six people including three children were injured as some unidentified men attacked a hotel with hand grenade on Napier Road here in the wee hours of Saturday, police said. The incident took place in Thokar Gali of Napier Road. Attackers were riding on motorcycle, eyewitnesses told local media. Rescue teams and police reached the site soon after the incident and shifted injured people to Civil Hospital where three are in critical condition.