Spanish data protection watchdog AEPD opened a probe on the exchange of user data between Facebook Inc. and WhatsApp Inc, Telecompaper reported Oct. 6.

The AEPD will reportedly coordinate with its counterparts in Germany, Italy and the U.K., to determine the nature of data collected and shared, as well as the purposes of data collection, among others.

In Germany, the Hamburg Commissioner for Data Protection and Freedom of Information recently ordered Facebook to cease collecting and storing data from WhatsApp users.