Report: The attackers gathered in groups of 5 to 10 in the alleys and key exits of various train stations, especially around Dam Square and the streets near Israeli hotels. 

They had precise information on where to wait, and as soon as they spotted the Israelis, they attacked. In some cases, vehicles were reported to have carried out hit-and-run attacks. 

The Dutch police left the Maccabi fans unaccompanied after they left the stadium, from the moment they boarded the trains to their hotels - and it took them at least an hour to arrive on the scene.