

Google on Tuesday pledged to match up to about $5.5 million in donations to humanitarian groups looking to help refugees entering Europe. The tech giant's charity arm already gave more than $1 million to aid organizations in relief efforts. With the move, Google hopes to encourage more individuals to donate and ultimately raise about $11 million.

Syrian refugees and other migrants are stopped by Macedonian police at the Greek-Macedonian border, near the village of Idomeni, Aug. 22, 2015. Yannis Behrakis | Reuters

Contributions will be distributed to four nonprofit groups: Doctors Without Borders, the International Rescue Committee, Save the Children and the U.N. High Commissioner for Refugees. "These nonprofits are helping deliver essential assistance, including shelter, food and water and medical care, and looking after the security and rights of people in need," Google wrote on its One Today page Tuesday.