Pro-government Khairy Ramadan was ordered detained late last night after he last month discussed the alleged low salaries of police officers on his show "Egypt Today" on the public Channel 1.
Citing a policeman's wife, Ramadan presented a breakdown of the officer's monthly gross salary of 6,890 pounds ($390, 320 euros), with which he has to provide for his family.
The decision to detain the presenter comes after authorities warned they were keeping a close eye on media and would take action against anyone spreading "false" news.
The state prosecution said Wednesday that it would monitor news outlets and social media "in light of recent observed attempts to harm the security and safety of the homeland by publishing lies and false news."
Prosecutors were ordered to "take the necessary measures under the criminal law" against "false statements, news and rumours that harm public safety or bring terror into the hearts of individuals.