Jerusalem: Israeli Prime Minister Benjamin Netanyahu's wife Sara has hit back at what she says is a smear campaign over her alleged mistreatment of domestic employees, media reported on Monday.

She railed that her "blood has been spilled publicly" at an ongoing trial on Sunday over her alleged abuse of the former caretaker at the premier's residence, just months after she was alleged to have pocketed public funds through bottle deposits.

"It's hard to be Sara Netanyahu with what they do to us, spilling blood," newspapers quoted her as saying.

In March, former caretaker Meni Naftali sued the prime minister's office and the Netanyahus for 650,000 shekels (USD 170,000, 150,000 euros) in compensation for alleged abuse, in a lawsuit that saw petty recriminations aired by both sides.

Naftali was quoted by Ynet news website as saying that in nearly two years of employment between 2011 and 2012, he was treated in a "patronising way".

He said this included "uncontrolled tongue-lashings" from Sara Netanyahu.

In one incident, Naftali says the premier's wife rebuked him at 3:00 am one day for buying milk that was not in a carton, local media reported.

The caretaker also alleged he was not paid for overtime and that the premier's office reneged on a promise to give him a permanent job.

At Sunday's hearing in the case, Netanyahu accused Naftali of hitting her son's friends when they visited the residence, local media reported.

The case was adjourned, and it was unclear when the next hearing will be. The Netanyahus have dismissed the allegations as an attempt to sully their image.

Before Netanyahu's March reelection campaign, media reported that his wife had pocketed at least USD 1,000 worth of public cash by collecting the deposits on empty bottles returned from the official residence.

Her husband denied the allegations. A report by the government watchdog also said Sara Netanyahu had called in an electrician for their private seaside residence home in northern Israel every weekend for three months, including on a public holiday when staff were off and unable to assess whether work was urgently needed.

The Netanyahus have complained that the reports were part of a media smear campaign, which commentators say was waged in part by media mogul Arnon Moses, head of the Yediot Aharonot newspaper and Ynet, who firmly opposed Netanyahu remaining prime minister.