The gun used to kill Plovdiv businessman Iliyan Filipov on 30 September has been found outside Plovdiv. The interior ministry and the prosecutor's office confirmed that it has been added to the case file as evidence.

In early October, interior minister Ivan Demerdzhiev said the weapon had not been found. Two days later, the ministry was working in the Maritsa river near the bridge by the Plovdiv fair.

The previous development: Police search Maritsa river near Plovdiv fair after killing of Iliyan Filipov

Both institutions gave the information in reply to questions from journalists, with permission from the supervising prosecutor. The prosecutor's office said active work on the investigation continues, so it will give no other details for now.

Filipov was shot dead at his property in Plovdiv. Hours later, police detained Slavcho Megerov, 51. He is charged with premeditated murder and remains in pre-trial detention.

According to the charge, the killing is linked to unsettled financial dealings between Megerov and Filipov.

Swabs taken from Megerov's hands will be tested for traces of gunpowder particles. The result is not yet known.

Follow-up: Police find gun used to kill businessman Iliyan Filipov in Plovdiv

Updated (06.11, 13:25): The 53-year-old businessman was shot in the entrance of an apartment block, not at his home as first reported, local media say. The killing took place in the first minutes of 30 September in Plovdiv's Hristo Smirnenski district. The call to the 112 emergency line came in at around 1am.