Trump insists crime rising in Germany, questioning official data

US President Donald Trump doubled down today on the false assertion that immigration is driving up crime in Germany, casting doubt on the country's official statistics.

"Crime in Germany is up 10% plus (officials do not want to report these crimes) since migrants were accepted," Trump tweeted, a day after he claimed German people were "turning against their leadership" over immigration.

"Be smart America!" said the president, who is under mounting pressure to end the separation of immigrant families on the southern US border.

While several high-profile crimes by migrants have fuelled public anger in Germany, which has admitted more than one million asylum seekers since 2015, the country's crime rate is at its lowest since 1992, according to official figures released last month.

Data from the German interior ministry does indicate that the proportion of crimes committed by foreigners has gone up in the past five years, but this cannot be attributed specifically to migrant arrivals.

Yesterday, Trump tweeted that crime in Germany "is way up" as he assailed what he called a "big mistake" by Europe "in allowing millions of people in who have so strongly and violently changed their culture!"