Two people are in custody after an attack at a Dusseldorf train station which injured four.

Anti-terror police swarmed Central Station and are still searching for two more suspects.

Impressions from #düsseldorf #attack pic.twitter.com/7Z767Yi7kI

— DC (@fxcplus) March 9, 2017

several people were wounded in axe attack at train station in #Dusseldorf, 2 attacker were arrested#Germany pic.twitter.com/Twh3QOFeGV

— Nemesis Arcady (@zuzamikulova) March 9, 2017

Police are investigating if 'axe-wielding man in Dusseldorf train station' had an accomplice https://t.co/LXpzi5QPuM pic.twitter.com/NV5aKnU51u

— Daily Mail Online (@MailOnline) March 9, 2017

A man aboard a train heading for Dusseldorf tweeted about the attack, then posted a video on Facebook live.

We just couldn’t believe at first… then it got serious with the second announcement. Video in Facebook/armindom

— Bruno Macedo ツ (@armindom) March 9, 2017

The change in their mood was apparent by the end of the video.

We will follow up with further information as it becomes available.