The second video features a tram driver driving along with one of his feet up on the dashboard of his tram.
The Brussels public transport company MIVB has condemned the actions of the two drivers. MIVB Spokeswoman An Van Hamme told journalists that "The behaviour of both drivers is totally unacceptable. The tram driver was identified yesterday and will be called to book."
"The bus driver is less easy to identify, but he will also be traced and asked to account for his actions", Ms Van Hamme added.