4 Dead 15 injured(two of them children). The driver of the truck is still missing. They are investigating it as an act of terror. Border controls have been implemented to check people leaving the country. They have arrested one person and "controlled" a few others. The arrested individual (https://imgur.com/a/pIoC9#CNEVUTf) this guy has been identified and THE POLICE DO NOT WANT TO REVEAL NATIONALITY. 

That was all from the press conference they just gave. You are now up to date.