Police in Magdeburg, Germany, said Sunday that those who died were four women aged 45, 52, 67 and 75, as well as a 9-year-old boy.

Police say the driver is under arrest after plowing into the crowd at a Christmas market in Magdeburg, Germany, killing at least five people - including a 9-year-old - and injuring 200 others.

The attack on a Christmas market in Magdeburg has raised questions about public safety and intelligence gaps in Germany. Police have described the suspect as "atypical," while experts have also blamed social media.