Kenyan Security Minister John Michuki has warned he may order new raids against the media just days after a deadly attack on a radio station.
The raid on the Standard in March was an attack on press freedom, said diplomats
Mr Michuki warned that the government would not hesitate to use force against any news group that demeans the state.
"No body will be allowed to harm the government and if they do that we will teach them a lesson," he said.
Last Friday, eight hooded gunmen raided Christian radio station Hope FM, killing a guard and injuring two more.
They also set fire to the office, causing the station to go off air for 10 hours.
The attack followed a broadcast in Swahili advocating the conversion of Muslims to Christianity.
The Pentecostal Church-owned radio management blamed the raid on Muslim extremists, but no arrests have been made.
The Standard newspaper, which was raided earlier this year by armed, masked police, published cartoons poking fun at Mr Michuki.
This appeared to anger the minister, who said he was "not one to be intimidated by what is written in newspapers."
"If I see that the security of this nation is threatened, and if I find any reason to repeat what I did there, I would do the same," he said.
Diplomats condemned the March raid on the Standard, with the US embassy saying such "acts of thuggery" had no place in an open democratic society
The UK condemned the raids as an "unprecedented attack on the freedom of the media" in Kenya.
Computers taken in the raid have still not been returned.