RUMA, Serbia(AP) Tennis player Jelena Dokic's father was sentenced Thursday to 15 months in jail on charges that he threatened the Australian ambassador in Serbia.

Damir Dokic was found guilty of ``endangering the security'' of the ambassador in Belgrade and unlawful possession of weapons, which were impounded during a police search of his home.

Dokic was brought under police escort to the court in Ruma, a town about 30 miles northwest of Belgrade. He did not comment, but his lawyer confirmed the sentence to The Associated Press.

Dokic was arrested last month after reportedly saying he would blow up ambassador Clair Birgin's car if she didn't stop negative articles about him from being published in Australia.

Jelena Dokic had given interviews to Australian media, saying her father had beaten her.

Dokic told Serbian media he would fire a rocket launcher at Birgin's car, but later said the statements were made in anger. He also has admitted having beaten his daughter.

Jelena Dokic, born in the former Yugoslavia, migrated to Australia with her family as a child and represented her adopted country at the 2000 Olympics.

She renounced her Australian ties in 2001 to move back to Serbia, then decided to compete for Australia again in 2006.

The 26-year-old Dokic is ranked No. 75 after a comeback at the Australian Open, where she reached the quarterfinals.