Remembering the victims of a tragedy.<br/> <br />A church service is held in Belgium for 28 people who died during a bus crash in Switzerland last week.<br/> <br />Church leaders described the accident - which killed 22 children - as a nightmare.<br/> <br />(SOUNDBITE) (Dutch) MONSIGNOR LEMMENS, SAYING:<br/> <br />"In the morning we woke up to the news that overwhelmed us like a deep black nightmare. The parents, brothers and sisters from families, friends and neighbours, not only<br/> <br />people in our country but countless persons in Europe and the whole world are shocked by this tragedy."<br/> <br />Many of the victims were from this school in Belgian town of Heverlee.<br/> <br />Mourners here have created a makeshift memorial - part of a national outpouring of grief.<br/> <br />The children were on a ski trip in the Swiss Alps when the bus they were riding in careened into the wall of a tunnel.<br/> <br />Swiss police are still investigating the cause of the crash.<br/> <br />Andrew Raven, Reuters
