( CNN ) -- The top part of a burning television tower collapsed in the Netherlands , leaving a trail of thick billowing smoke and fiery flames . It was unclear what caused the fiery collapse in Hoogersmilde Friday . The incident disrupted television , radio and mobile phone networks nearby . Fire crews arrived before the collapse , but moved to a safe distance when they realized they could not extinguish the blaze , Mayor Jan Broerjes said Friday . No one was injured . An investigation is under way . CNN 's Ben Brumfield contributed to this report .
The cause of the fiery explosion in Hyderabad is unclear . Incident disrupts television , internet and mobile services nearby .