Tanzania’s information minister on Monday ordered the release of a rapper arrested for launching a song deemed insulting to the government.

Wako, the new song by Ney wa Mitego, talks about a “doctor” who does not appear to want “advice” or “criticism.”

Interpreted as referring to President John Magufuli, the song has become a hit on social media.

Information Minister Harrison Mwakyembe told journalists Magufuli had “no problem” with the song and that the government had decided to order the release of Mitego, who was arrested in Morogoro in the east on Sunday.

“I talked to the president this morning and this was one of the issues which came up in our talks. He indicated that he has no problem with the hit because it is the opinion of the artist,” the minister said.

Mitego’s arrest came amid growing concern over freedom of expression in the East African country after information minister Nape Nnauye was sacked and replaced by Mwakyembe on March 20.

Nnauye had tried to investigate a senior official, allegedly close to the president, who had attempted to force the airing of a broadcast critical of a clergyman he was not on good terms with.

After Nnauye was sacked, armed police prevented him from addressing a press conference.

Magufuli meanwhile on Friday warned media owners to “watch it” and said their freedom was limited.

In office since November 2015, Magufuli initially earned himself the reputation of a trailblazer in Africa, diverting funds from national celebrations to hospitals, providing free secondary education and tackling corruption.

Recent opinion polls suggest he remains popular, but he is increasingly seen as trying to stifle the media.