Chairman Joe Simons said in an interview with Bloomberg that the regulator is probing anti-competitive practices in the tech sector.

Simons said in the interview that breaking up a company is challenging, but could be the right remedy to rein in dominant companies and restore competition.

He is leading a broad review of the technology sector to see whether companies, including Facebook are harming competition.

Bloomberg quoted Simons as saying of breaking up companies, “If you have to, you do it”. He added, “It’s not ideal because it’s very messy. But if you have to you have to”.

Senator Elizabeth Warren has vowed to break up Amazon.com, Alphabet Google and Facebook if elected US president, to promote competition in the technology sector.