A political crisis has erupted in Germany after Interior Minister Horst Seehofer, leader of the Christian Social Union (CSU), the Bavarian sister party to Merkel's conservative Christian Democratic Union (CDU), announced he was resigning from government and the CSU leadership on Sunday night.
Other senior party figures had tried to dissuade him from stepping down Deutche Welle reported.
Seehofer complained during a meeting of top CSU officials that he had held a "conversation with no effect" with Merkel when they held talks on Saturday about the EU deal on migration, sources said.
He did say, however, that he was going to seek one more talk with Merkel on Monday about asylum policy before deciding on his future.
"In the interest of this country and the capacity of this government, which we want to maintain, we want to make an attempt to find an agreement on this central question of turning people away [at the German border]," DW quoted him as saying. "Everything else will be decided afterward."
Merkel had previously given a more upbeat account of Saturday's meeting, telling broadcaster ZDF that she had made concessions to Seehofer. Merkel is expected to speak to the media at 10 am CEST, after her CDU party's meeting.
Mexico's Lopez Obrador wins presidential elections
Mexican voters handed Andres Manuel Lopez Obrador a powerful mandate for government with a landslide election victory. It's estimated that 89 million people voted in Sunday's presidential election.
The 64-year-old former Mexico City mayor, known by his initials Amlo, won between 53 and 53.8 percent of votes, according to a quick count by the electoral authority, taking more than half the vote — some 30 points ahead of his nearest rival.
Lopez Obrador's key pledge has been to tackle the "evil" of corruption. He also vows to reduce inequality, improve pay and welfare spending and run a tight budget. He has also pledged to reduce Mexico’s economic dependence on the US.
“The new project of the nation will try to seek an authentic democracy,” he told his supporters at the Zocalo, the main plaza in Mexico City late Sunday local time. “I want to go down in history as a good president of Mexico,” he added.
The victory makes him the first leftist president since Mexico began its transition to democracy more than 30 years ago. His coalition is set to have a majority in the lower house and possibly the Senate. Lopez Obrador will be sworn in on Dec. 1.
With reporting by Reuters, DW