German national Sunday newspaper Bild am Sonntag reported that “Americans succeeded in decoding locked communications of the ISIL leadership.”

The report said the new information shows that the terrorists want to enter Turkey under the guise of refugees to travel to Germany and from there to other spots in Europe.

“In view of the chaotic conditions on the Syria-Turkey border, it is nearly impossible to catch ISIL terrorists in the wave of refugees,” said the report, which has also been confirmed by German officials.

The militants cannot use airports to go to Europe due to strict control, the report added.

Some 450 extremists have left Germany in the direction of Syria while roughly 150 others have returned, according to authorities.

The ISIL terrorists, who were initially trained by the CIA in Jordan in 2012 to destabilize the Syrian government, control large parts of Syria's northern territory. The ISIL sent its militants into Iraq in June, quickly seizing vast expanse of land straddling the border between the two countries.

They have threatened all communities, including Shias, Sunnis, Kurds, Christians, Izadi Kurds, and others, as they continue their atrocities in Iraq.