The European Parliament plans to investigate the alleged misuse of Facebook Inc.'s user data, Antonio Tajani, president of the European Parliament, said in a tweet.

"Allegations of misuse of Facebook user data is an unacceptable violation of our citizens' privacy rights," Tajani said in a March 19 statement.

The statement followed the suspension of Facebook accounts of British company Strategic Communication Laboratories and its political data analytics firm Cambridge Analytica LLC, as well as Christopher Wylie of Eunoia Technologies, for violating the platform's personal data policies.

The move came after Facebook learned that not all user data illegitimately passed on by University of Cambridge Professor Aleksandr Kogan to SCL/Cambridge Analytica had been destroyed after the violation was discovered in 2015.