Most of the space debris will burn up on re-entry.
The Paris-based agency, which is managing the global campaign to follow the laboratory's fall, said on Saturday that the time and place of its re-entry continues to be a "highly variable" prediction affected by the changing solar activity, reports Efe news.
But experts say the likelihood you'll be hit by a piece of the 18,700-pound Tiangong-1 station is extremely remote - less than one in a trillion.
"It's normal for spacecraft to re-enter the atmosphere, yet Tiangong-1 received so much attention partly because some Western countries are trying to hype and sling mud at China's fast-growing aerospace industry", it said.
Estimates vary as to when and where the 34ft long space station, which weights almost 10 tons, will crash - but it is believed to smash back down to Earth very shortly.
The uncontrolled re-entry of the space lab has been a blot on China's space program, as it goes against worldwide best practice.
China had planned a controlled re-entry of Tiangong-1 into Earth's atmosphere. China's chief space laboratory designer, Zhu Zongpeng, has denied Tiangong was out of control, but hasn't provided specifics on what, if anything, China was doing to guide the craft's return to Earth. And the Chinese government informed about the defunct to the United Nations in May.
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Divisional commissioner Sanjay Dubey, while confirming the deaths, said the exact reason for the collapse is not clear. A team of police and district officials were conducting rescue operation to find people trapped under the debris.
"In the history of spaceflight, no casualties due to falling space debris have ever been confirmed", the ESA said last month.
Most famously, America's 77-ton Skylab crashed through the atmosphere in 1979, spreading pieces of wreckage near the southwestern Australia city of Perth, which fined the USA $400 for littering.
There is "no need for people to worry", the China Manned Space Engineering Office said earlier on its WeChat social media account.
"It's that interaction with the outermost part of the atmosphere of the Earth that is going to trigger it to finally come down", said Perlman.
"It might be an orbit later, and then the whole window changes", Perlman said of the predictions available Friday afternoon.
Agencies around the world who have monitored an out-of-control Chinese space station's fall to Earth believe it has a higher chance of hitting parts of the US, Europe, Australia and New Zealand.