| Authorities say they are not aware of any concrete threat to the festival |
Police in Germany have tightened security for this year's Oktoberfest over terrorism fears.
| New fences aim to ensure no attendees can get around security checks |
Germany's week of violence
How Germany is tackling terror threat
He said there remains a "fundamentally high risk of terror attacks in Germany overall.''
Backpacks and large bags will be banned from the festival site and more police than usual are being deployed.
Some 450 security guards will be on-site and 29 security cameras will keep watch on festivities. "The adapted safety concept adequately reacts to recent events without changing the basic character of the Oktoberfest," Munich Mayor Josef Schmid said.
Ten people were killed and dozens more injured in separate gun, bomb, axe and machete attacks in Germany's south during one week in July, several of them in Bavaria.
An axe attack on a train in Wuerzburg by a teenage Afghan refugee was claimed by so-called Islamic State, while a rejected Syrian asylum seeker who blew himself up in Ansbach had pledged allegiance to the group.
But police ruled out a political motive for an 18-year-old gunman who killed nine people and then himself in a Munich shooting spree.
These events had led authorities to "re-evaluate the Oktoberfest safety concept," said Dr Thomas Bohle of Munich's Department of Public Order.