Three of the Arriva-operated Mercedes-Benz bendibuses have suffered fire damage in recent weeks. Thus the Maltese government have taken the step of withdrawing them temporarily from service whilst an investigation takes place. Other buses have been used but there are not enough to cope with the passenger capacity required.
Naturally the Maltese travelling public and tourists alike are having to put up with some rather difficult conditions, and as can be gathered from the link below, many hark back to the good old days of the long serving fleet of older buses.
http://www.independent.co.uk/news/world/europe/tourists-visiting-malta-driven-round-the-bend-by-the-unpopular-buses-that-boris-johnson-rejected-8819734.html
A selection of Malta Buses fill the lens in Valetta bus station back in March 2011, a couple of months before the great changeover took place.