Berlin Christmas market - the scene of a fatal terror attack three years ago - was tonight evacuated.
Two men were held by police in the German capital.
A suspicious object was investigated, police say, but was deemed not to be dangerous.
The latest tweet from police reads: "The onsite inspection initially revealed a wanted listing, which was not confirmed in the further course. Because of the behaviour and the accepted wanted list, our college as a precaution cleared the Christmas market."
But they had earlier confirmed on social media visitors were asked to leave the market.
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"Currently, our colleagues are working at the Breitscheidplatz Christmas Market and are clearing it in order to follow up indications of a possibly suspicious object," Berlin police tweeted.
"All visitors left the Christmas market in a calm and collected manner.
"Thank you. Our colleagues are now starting the search on the Breitscheidplatz and in the Memorial Church."
“We just had a mulled wine and stood on the Tauentzienstrasse, where they started to clear, and were driven towards Hardenbergstrasse," one visitor told local media.
Bild also said one of the men was a wanted man in the US for offences linked to possessing explosives. However police since clarified this wasn't the case.
Panicked visitors were attending a special concert when police swooped.
A terrorist ploughed a truck into the Christmas market at Breitscheidplatz in 2016, killing 12 people.
Italian police subsequently shot Anis Amri dead after he fled Germany.
Amri, who had Islamist militant ties, hijacked a black truck and drove it into Breitscheidplatz in December 2016.
Police said at least nine people died and up to 50 others were injured when the huge vehicle smashed into wooden booths selling mulled wine and sausages outside the Kaiser Wilhelm Memorial Church.