Germany's president has brought together Chancellor Angela Merkel and the leader of the centre-left Social Democrats with the aim of breaking the impasse over the formation of a new government.
President Frank-Walter Steinmeier called the party leaders together after talks between Mrs Merkel's conservative bloc and two smaller parties to form a previously untried coalition collapsed.
Martin Schulz, Mrs Merkel and her Bavarian ally Horst Seehofer agreed to meet at Germany's presidential palace to explore the possibility of forming a so-called grand coalition like the one that makes up the outgoing government.
Mr Schultz initially refused to consider another "grand coalition" with Mrs Merkel after a disastrous showing of the Social Democrats in the election on September 24, saying the Social Democrats needed to go into opposition.
But he reversed course after Mr Steinmeier's appeal and said his party is now open to holding exploratory talks.
Mrs Merkel this week said she hoped to talk with the Social Democrats "in a serious, engaged, honest way and obviously with the intention of success".
Mr Schulz sounded more sceptical, however, saying the talks hosted by Mr Steinmeier would be about "if and in which form" they would continue discussions and "if it even makes sense to continue to talk with one another".
He added that his party members would have to have a final say over any agreement.
Even if the two sides do agree to continue, they'll first have to negotiate the prerequisites for coalition talks, then carry out the coalition talks themselves, meaning it will likely be several months before a new government is formed.
If Mrs Merkel cannot put together a coalition, the only options would be a minority government or a new election.
In the meantime, she continues to head a caretaker government made up of her conservatives and the Social Democrats.