At least two Dutch people were arrested in Germany in connection with riots around the G20 summit in Hamburg over the weekend, the Hamburg police confirmed, according to RTL Nieuws.

One of the Dutch detainees is a 33-year-old man from Nijmegen. He was still in custody by Tuesday night. The man asked for assistance from the Netherlands and is receiving that from the Dutch consulate in Dusseldorf, a spokesperson for the Ministry of Foreign Affairs said to the broadcaster.

German media reported that "multiple" people from the Netherlands were arrested. "We've inquired about that several times over the past few days, but we haven't received confirmation from the local authorities", the Ministry spokesperson said.

More than 400 people were arrested for rioting during the G20 summit - a meeting of the 20 major global economies. Nearly 500 police officers were injured by thrown bottles, fireworks and other objects.