19:51 - Secretary of the Interior said whole city is in danger
19:55 - Public transportation in city center is partially stopped
20:03 - Police president said there was a serious plan to plant/detonate something
There will be a press conference at 20:30.
There is SPECULATION on twitter that the police got someone - Press conference said there were no arrests yet, so probably not true.
20:15 Newest info from police president is: There was a PLANNED bomb attack on the stadium
NOT YET CONFIRMED (RUMOR): there was an ambulance car with explosives inside, but it was found early enough.
Television news said Intelligence had information about an attack on the stadium earlier today.
People also left the stadium in a coordinated manner, no mass panic.
20:40 - News say attack was planned by Islamists. Police president said they got the decising clue 15 minutes after letting people into the stadium. What a timing.
20:47 - Press conference delayed to 21:00.
By the way, ZDF (German television) is trying to broadcast the game England vs France at short notice. So keep the beer cool for now.
21:00 - A heavy police force is guarding the Ministry of the Interior. Press conference hasn't started yet.
Missed that one: A concert hall in Hannover also got evacuated.
21:21 - Press conference just started.
Info from Press conference (also check u/seewolfmdk[6] comment, (s)he is doing a more detailed job at translating):
after Paris, there was (as usual after big attacks) a lot of clues and info about upcoming attacks. Intelligence got a lot of info just today, so they adviced politicians to cancel the game and Secretary of the Interior supported that. He also won't comment on any source or what kind of clues there were.
Heavy police force will keep securing Hannover so everybody is ensured to get home safe
Secretary of the Interior DOES NOT want to comment about if there is still a threat, what kind of threat there is/was, when he got information, just ... nothing really. His reason is to not give away any information about sources or how they decide to cancel public events like that.
No information about found explosives and no information about arrests. No confirmation either.
NO CONFIRMATION about explosives inside of an ambulance truck.
Secretary says people should still gather and celebrate things like football or christmas (soon). Cancelling big events like today will happen on a case-to-case basis, not generally.
PRESS CONFERENCE IS OVER.
If you want my personal opinion, there wasn't any important information to justify this press conference at all. He also talked in a way that I found dodgy and very, very imprecise. Since there is no confirmation for anything, they could've canceled the game just because or any other reasion. But that's just my personal point of view.
21:30 - dpa says they have insider info that the crucial clue was coming from a foreign Intelligence Agency.
u/pXmo[9] says they check passengers and cars for IDs
22:02 - The police minister said on television they more or less HAD to cancel when they got this "crucial clue".
22:04 - Bild (German yellow press) claim they have info that the clue came from the French Intelligence Agency. 30 hours before the game was supposed to start, they warned Germany about a group of attackers armed with explosive belts, bombs and automatic weapons.
22:43 - Federal police is investigating a "suspicious object" inside of an InterCity train
22:49 - Bundesliga is supposed to go on normally. If there were clues about a group armed with explosives and assault rifles and they can't find those guys, they could just try again. Really strange feeling, although keeping up our normal life is probably the best thing anyway ...