WARSAW, Aug 22 (Reuters) - Polish police and rescue troops were searching for ten people on Wednesday who went missing when a storm ravaged Poland's lake region. Police said three people, not five as previously reported, were killed on Tuesday after strong winds caused havoc for boats and kayaks. Hundreds of rescue workers using helicopters, airplanes and dogs were searching for the missing people in the popular tourist region of the Mazury lakes. "There are still chances to find some people but only if they were on land," Pawel Czubinski, from the water rescue team in the region, told Polish news agency PAP.