German Chancellor Angela Merkel on Saturday said Islam is not the source of terrorism.

Merkel, who has criticized the Trump administration for banning citizens from seven Muslim-majority countries, said it was critical to include Muslim countries in the battle against terrorism.

She also said Europe’s ties with Russia remained challenging, adding that it was important to work with Russia in fighting terrorism.

The joint fight against terrorism is “one area where we have the same interests and we can work together,” the German Chancellor said.

ISIS, a terrorist group, has emerged in Iraq and Syria in 2014. Backed by foreign governments before it declared its so-called caliphate, the terrorist group captured large areas of land in the two countries.

Iraqi forces, backed by Kurdish forces have been fighting the terrorist group since October 2016 when they launched a campaign to retake Mosul from ISIS.

US Vice President Mike Pence also spoke at the conference. He said that the Trump administration will back NATO and stand with Europe as it is seeking for new ways to cooperate with Russia.

“Know this: the United States will continue to hold Russia accountable, even as we search for new common ground, which as you know, President Trump believes can be found,” he said.