Protesters have blocked roads as the leaders of the Group of Seven industrialized democracies arrive in the Bavarian Alps to begin a two-day summit.

Several hundred demonstrators began hiking early Sunday from the resort of Garmisch-Partenkirchen to get near the security perimeter around the Schloss Elmau hotel, the secluded summit venue 8 kilometers (5 miles) away.

Some 22,000 police from around Germany were brought in to keep the protesters away from the hotel as the delegations from the U.S., Germany, France, Britain, Canada, Japan and Italy began arriving. Journalists were flown by helicopter to the venue to avoid delays on the roads Sunday due to the protesters.

There was a short clash between protesters and police during a demonstration Saturday but it was otherwise relatively peaceful.