Police are investigating after an oBike was thrown at a moving train, causing $300,000 worth of damage.
The rental bike was thrown from a pedestrian bridge near Birrarung Marr and Rod Laver Arena between 4.30pm and 4.41pm on April 29.
Metro Trains said the oBike was thrown from the footbridge onto a train damaging the equipment that connects the train to power lines. The power lines were also damaged.
"This is an irresponsible and dangerous act of vandalism that caused significant disruption to a large number of people” a spokesperson said.
Now police are looking to the public for witnesses.