The government has threatened to publish a list of gay rights activists.
A story by the Tanzania Broadcasting Corporation claimed that the U.S. president had praised John Magufuli.
At least 19 people died when a magnitude 5.7 earthquake hit northern Tanzania in September.
The man referred to President John Magufuli as an "imbecile" on the social media platform.
'The Bulldozer' has made quite an impact since being elected in October 2015.
The vote on the so-called Spice Islands proceeded peacefully despite fears of violence.
The semi-autonomous archipelago is rerunning elections after October's result was controversially nullified.
Authorities are targeting prostitutes and their clients in the East African country.
Benjamin Mkapa has got quite a job on his hands.
The Tanzanian president has embarked on an anti-corruption and cost-cutting campaign since being elected in October.
The Bulldozer canceled Independence Day celebrations and has spawned a hashtag.