Galp Energia (OTCPK:GLPEF) (OTCPK:GLPEY) said Tuesday that CEO Filipe Silva has resigned, days after a Portuguese news website reported the company's ethics committee was investigating an anonymous complaint about an alleged personal relationship between the CEO and a company manager.

Portuguese oil company Galp Energia said on Tuesday that Chief Executive Filipe Silva had resigned following a company investigation into an anonymous complaint about an alleged personal relationship between him and a company manager.

The resignation comes as Galp's ethics committee probes an anonymous tip about an alleged personal relationship between Filipe Silva and a manager at the company.

Galp Energia is investigating an alleged personal relationship between Chief Executive Filipe Silva and a manager with the Portuguese oil company, Eco reported Friday. The Portuguese online outlet reported that the company’s Ethics and Conduct Committee’s probe into the relationship was due to an anonymous tip.

Company statement late on Tuesday cites ‘family reason’ for resignation, while local media has reported of alleged investigation into Silva’s relationships with staff

Galp Energia SGPS SA’s ethics committee is investigating an anonymous tip about an alleged personal relationship between Chief Executive Officer Filipe Silva and a manager at the Portuguese oil company,