<sod >ÃÂ  A Reuters reporter at the scene said splashes of blood could be seen onÃÂ the snowy street as several ambulances removed people from the area and police shut down surrounding roads.< eod>< sod > "Unfortunately, several people were killed and wounded." A Reuters reporter at the scene said splashes of blood could be seen on the snowy street as several ambulances removed people from the area and police shut down surrounding roads.< eod>