Rumen Porozhanov, Director of the State Agriculture Fund, who was severely beaten on Thursday evening, was released from Sofia's Military Medical Academy (MMA) on Friday after a series of check-ups.

Valeri Yordanov, head of the Sofia Directorate of the Ministry of Interior, told bTV on Friday that the beating had not been an attempt on Porozhanov's life but had had the purpose of threatening him.

Yordanov said that no police portrait of the attackers was yet available.

Earlier Friday Tihomir Eftimov, head of the Neurosurgery Clinic at the MMA explained that Porozhanov had suffered a relatively light brain trauma.

He said that the head injuries had most likely been caused by a solid object.

Eftimov noted that Porozhanov had been fully conscious at the time of his admission to the MMA's Emergency Room, or around 7 p.m on Thursday.

He told journalists that the 47-year-old State Agriculture Fund head had lost memory of certain periods after the trauma but he would recover in the next 2 or 3 days.

No arrests have been made over the assault and the police investigation continues.

According to preliminary data, Porozhanov was attacked by two masked men at around 6.45 p.m. in front of the elevator in a block of flats in Sofia's Borovo residential district.

Porozhanov is the third head of the State Agriculture Fund appointed by the GERB government.

He took office in end-March 2011 following an embarrassing scandal involving its former head, Kalina Ilieva.