NEW DELHI: Another Xiaomi smartphone reportedly exploded into flames in China, just days after a similar incident was reported by a user based out of Noida, Uttar Pradesh. A user claimed in a Weibo post (first spotted by Phone Radar) that the battery of the Mi 5 smartphone apparently caught fire. He also shared photographs of the burnt Mi 5. There is no official confirmation about the incident. Further details about the same are not yet available.As for the incident that took place in Noida, Xiaomi is already investigating the cause of mishap and has provided the user with a replacement unit."We take such matters seriously and we have already been investigating the matter. We have been in touch with the customer and will be getting his device this week for further investigation. In the meantime, we have offered a replacement phone to the customer," the company had said in a statement.The Noida-based user claimed that his Xiaomi Mi 4i smartphone suddenly caught fire while he was "using his phone sitting at his office desk," detailing the same on his Facebook profile page. Thankfully, the accident didn't cause any injury to him or others sitting around his work desk.To back his claim, Negi has shared his office work desk's CCTV camera footage, the original bill provided by Flipkart and some photographs of the remains of his burnt black colour Xiaomi Mi 4i smartphone.While in Negi’s case, the device was completely destroyed, the incident in China shows that the battery caught fire only.