Russian Police has intensified efforts on the security of prison where Alexei Navalny, a prominent opponent of President Vladimir Putin is being held.
TOS News gathered that supporters of Navalny are prepared to protest after which he has declared a hunger strike last week in protest at what he said was the refusal of prison authorities to treat him properly for acute back and leg pain.
However, the prison authorities say his condition is well and he has been provided with all necessary medical care.
A group of his allies said they would protest at the prison in the town of Pokrov 100 km (60 miles) east of Moscow on Tuesday unless he is allowed to see a doctor of his choice for proper medicine.
Police Officers on Tuesday morning have set up a makeshift checkpoint in front of the prison gate and used a metal barrier to block the road 100 metres from it.