Tamil Nadu reported a fresh COVID-19 death while 25 more people tested positive for the disease, taking the state's toll due to it to 15 and total cases to 1,267 on Thursday, Chief Minister K Palaniswami said.He said the lower number of fresh cases showed the government was containing the spread of the contagion.Fresh cases on Wednesday stood at 38, a little more than Tuesday's tally of 31, unlike higher numbers seen earlier in the week.The state had reported 98 fresh cases on Monday and 106 on Sunday."This disease is a big challenge," the chief minister told a press conference after chairing a meeting of district collectors to take stock of the preventive measures being implemented across the state.