Kolkata: Three fire incident across the city triggered tension on Thursday and Friday.On Thursday night, a fire broke out at the service dispensary room (medicine room) of ESI Hospital in Sealdah. Another fire broke out at an empty Puja pandal at Survey Park. In another incident of fire, several shanties were gutted on Thursday evening in Dum Dum Cantonment area. No one got hurt in any of these incidents. According to the police, on Thursday around 10:15 pm, some staff of ESI Hospital saw smoke billowing out of the medicine room. The hospital super, police and fire brigade were immediately informed. Also Read – Rain batters Kolkata, cripples normal lifeWithin a few minutes, three fire tenders reached hospital and controlled the fire within 10:35 pm. Due to the fire, several medicines got damaged. A refrigerator where medicines used to be preserved also got damaged. Sources informed that the fire may have occurred due to some electrical disorder. In another incident on Thursday, several shanties were gutted near wireless math area at Dum Dum Cantonment. Four fire tenders doused the flames within a short period of time. Some residents of those shanties felt ill due to smoke but no one sustained burn injuries. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedOn Friday afternoon, another fire broke out at Survey Park in the afternoon. Police informed that the Puja pandal of Trikon Park Puja committee was getting dismantled. Around 12 pm while untying ropes from bamboos, a worker noticed flames close to him. He immediately warned others and all of them maintained safe distance. Locals informed police and fire brigade. Two fire tenders were pressend into action to control the fire. Though the flames did not spread, smoke from the inflammable materials was quite dense. No injury was, however, reported in the fire. The cause of fire was not confirmed but it is suspected that somehow a spark came in touch with the straw which was used to make the pandal.