German Chancellor Angela Merkel is facing catastrophe over her failed migrant policy, according to a new report.

During the first six months of 2016, migrants committed 142,500 crimes, according to the Federal Criminal Police Office.

And Germany has been hit by a spate of horrendous violent crime including rapes, sexual and physical assaults, stabbings, home invasions, robberies, burglaries and drug trafficking.

Adding to the country's woes is the fact that thousands of people have gone missing after travelling there on invitation from Angela Merkel.

Germany took in more than 1.1million migrants in the past year and parts of the country are crippled with a lack of infrastructure.

"During the first six months of 2016, migrants committed 142,500 crimes, according to the Federal Criminal Police Office. This is equivalent to 780 crimes committed by migrants every day, an increase of nearly 40 per cent over 2015. The data includes only those crimes in which a suspect has been caught.