Frank-Walter Steinmeier told ARD television today that "in the end, the result must be that Russian soldiers return to their barracks."
He said part of the solution could involve setting up a contact group involving European countries and perhaps the United Nations along with Russia and Ukraine.
He says the Organisation for Security and Cooperation in Europe could be asked to put together a fact-finding mission. Steinmeier also indicated there's division among members of the Group of Eight industrial nations over whether it would be wise to exclude Russia from the club.