Italian police say they have arrested two more suspected mafia bosses, a day after seizing their brother in a raid near the southern city of Naples, BBC reported.
They say Pasquale and Carmine Russo were detained in Sperone, some 30km (20 miles) east of Naples.
Salvatore Russo, the head of a Camorra clan that bears his name, was held in a raid on a chicken farm on Saturday.
Interior Minister Roberto Maroni described his arrest as "a heavy blow for the Camorra".
Salvatore Russo, 51, is one of Italy's most wanted mafia fugitives, officials say.
He had been on the run since being sentenced in 1995 to life in jail for murder and links to organised crime.
'Closing the net'
Pasquale Russo, 62, and his brother Carmine, 47, were arrested on Sunday morning at a farmhouse in Sperone, police say.
Pasquale Russo is on the list of Italy's 30 most dangerous fugitives. He had been on the run since 1995 and is accused of murder and the disposal of bodies.
His brother Carmine had been in hiding since 2007.
On Saturday, Mr Maroni said police were "closing the net on the super-fugitives".
The Russo clan, based in the town of Nola, had an iron grip on criminal activity in some 40 towns in the Naples areas, officials say.
The Camorra operates in the Naples area and is believed to have about 5,000 members.