Criminal charges have been lifted against Russian investigative journalist Ivan Golunov.

Russia’s interior minister Vladimir Kolokoltsev has said Mr Golunov would be released from house arrest.

Ivan Golunov, a reporter for Meduza independent news site had been charged with attempted drug-dealing.

Police detained him last Thursday and said they found designer drug mephedrone and cocaine in his rucksack and apartment, but supporters suggested they were planted.

The 36-year-old has investigated high-level corruption among Moscow officials and Meduza said he had received a number of death threats. It believed he is being persecuted for his journalistic work.

Mr Kolokoltsev also said he had asked President Vladimir Putin to dismiss two senior police officers over the arrest of reporter Ivan Golunov as charges against him were dropped Tuesday.

"I have decided to request the Russian president to dismiss the police chief for western Moscow Major-General Andrei Puchkov and the head of the Moscow police department for narcotics control Major-General Yury Devyatkin," Mr Kolokoltsev said in a statement.