The German government says more than 91,000 asylum seekers arrived last month, underlining the pressure the country faces to diminish the influx of migrants.

The Interior Ministry said Thursday that 91,671 people were registered as asylum seekers in January. That's lower than the 127,320 who arrived in December; officials have said that winter weather was the driving force behind the decline.

In all, Germany saw nearly 1.1 million people arrive last year, and officials are keen to ensure that the figures are lower this year. Chancellor Angela Merkel insists that diplomacy is the key to a solution, and has resisted pressure for unilateral measures such as a cap on refugee numbers. However, the government has moved to toughen asylum policies.