Jammu, Jan 29 (Reporter) At least four labourers suffered injuries when a boiler exploded with a bang in a factory on Monday in the Samba district of Jammu and Kashmir.The police here said that a powerful explosion of a boiler took place inside the newly constructed unit in the first phase of the industrial area in Samba.Four people suffered critical burn injuries in the incident, they said.Police stated that the injured were immediately evacuated and shifted to the District Hospital Samba, from where they were referred to the Government Medical College and Hospital Jammu for emergency first aid.The injured were identified as Varun Sharma, 32, a resident of district Kathua; Abhay Thappa, 24 of Samba; Arun Kumar, 28 of Jammu; and Babu Ram, 38 of Kishtwar.The police, however, have registered a case and started the investigation...////...