In Kolkata, atleast Four persons were killed and twenty others injured in a devastating fire in a multistoried building in busy Park Street area today. More than forty fire tenders are working to bring the blaze under control. <br/><br/>AIR Kolkata Correspondent reports that injured persons have been admitted to different hospitals in the city. Fire Brigade Personnel rescued the trapped persons. A portion of the building has already broken down. Commando forces and Quick Response Team have been deployed for rescue works. Railway Ministier, Miss Mamata Banerjee has instructed Railway Disaster Management team to join in rescue operation. The building housed commercial and residential complex.<br/>