More than 4500 people were killed by lightning in the last 10 years and 126 people were killed in last two months, May and June. Among the 126 lightning fatalities in last two months, 21 are female, 7 children and 98 male. Besides, some 53 people were also injured. A study by Save the Society and Thunderstorm Awareness Forum revealed these on Saturday. Thunderbolt took lives of 60 people in May and 66 in June, added the study. Most cases of causalities took place in Kishoreganj district where at least 16 people died in the last two months. Other thunderbolt-prone areas of the country are Satkhira, Rajshahi, Chapainawabganj, Sunamganj, Narayanganj, Gazipur, and Tangail where incidences of lightening takes place frequently. The study report mentioned that cases of lightning took place most during the harvesting season and then during the rainy season. On an average 40 lightning cases take place in every square kilometer of area in the country. According to the study, in May and June last lightning strike killed 16 people in Kishoreganj, 3 in Habiganj, 10 in Rajshahi, 9 in Chapainawabganj, 6 in Pabna, 7 in Dinajpur, 4 in Nilphamari, 4 in Jamalpur, 4 in Sherpur, 6 in Naogaon, 5 in Sirajganj, 5 in Narayanganj, 3 in Moulvibazar, 4 in Khulna, 11 in Satkhira, and 4 in Tangail. Changed pattern of weather due to climate change, ecological imbalance caused by felling of huge number of trees, setting up of mobile phone towers indiscriminately, and after all incessant global worming are contributing to abnormal increase of lightning. The study further said the cases of lightning causalities will keep increasing with the growing level of temperature. It is feared that with each 1 percent increase of temperature the lightening will increase by more than 10 percent. Data suggest that the thunderstorm killed 186 in 2015, 245 in 2016, 306 in 2017 and 297 in 2018. Recently the government has declared lightning as a natural disaster. Department of Fire Service and Civil Defense has recently issued a total of 20 directives to save people from lightning. The directives include not to touch the metallic rallying, pipe or bell at home during the thunderstorm, not to stay all together in a single house and not to take shelter under any tree during the storm, disconnecting electric connection during storm, among others.