ROME (AP) _ Police have arrested two suspects, a Romanian and an Italian, in the murder of a nobleman who served on the Vatican's protocol corps, news reports said Friday.

Paul Badea, 35, a Romanian who had lived in Italy for seven years, confessed to killing Enrico Sini Luzi by striking him on the head with a candlestick, the ANSA news agency said, quoting investigators.

It said the other suspect, Claudio Betravi, had the victims' cellular phone when the two were arrested Thursday in the central Abruzzi region.

Sini Luzi was found dead Jan. 8 in his Rome apartment, his skull shattered and a white silk scarf tied around his neck. He was a member of ``His Holiness' Gentlemen,'' a protocol group whose duties include ushering during Vatican ceremonies.

Eighteen men who authorities say were homosexuals have been killed in Rome in the past seven years, raising fears of a serial killer. However, police say there is no evidence the murders were carried out by a single assailant.

In Milan, police were seeking a 25-year-old Romanian man who apparently had lived with a Milan man who was found strangled in his bed earlier this week.