Long distance low-cost buses, in addition to students and money-savers, are also being used for drug trafficking, say police.

As they do world-wide, low cost buses wind their way throughout Europe, offering bargains like Paris to Berlin for 50€ or less.

One company offering such cheap rides is Flixbus. Its buses connect 1,400 towns in 27 countries, offering 250,000 connections each day.

While Flixbus has transported plenty of travellers on tight budgets, such as students, it has unfortunately also attracted a less savoury element. Drug traffickers have allegedly been using the service to transport their wares.

Luxembourg police have confirmed they are aware of the problem, but have yet to make a larger seizure of trafficked goods or drugs.

Flixbus said in a statement that it has been working closely with the authorities of countries particularly affected by drug trade to try to put a stop to this. According to the statement, the bus company has installed surveillance cameras in the baggage compartments of some of their buses.

Luxembourg's police service is working with the border control agency to ensure that busses are being checked at various border crossings.

Flixbus has requested police presence at bus stops like airports and train stations.