Soliders and police are scouring a swollen river in Guyana's remote western jungle for four miners whose boat capsized in rapids during heavy rainfall. Police Spokesman Ivelaw Whittaker says the four missing men were part of a group of seven miners heading into the Cuyuni region bordering Venezuela when their boat overturned. A passing vessel managed to rescue three of the men. Whittaker says the boat capsized Saturday and by Sunday rescuers have found no sign of the four missing miners, who were not wearing life jackets. Since November, river boat accidents have killed 23 people, including 11 who died when two boats collided in the nearby Mazaruni River, AP reported.