The daughter of Hamas' top leader in the Gaza Strip has reportedly received treatment at an Israeli hospital, a spokesperson for Ichilov Hospital said on Sunday, weeks after a bloody 50-day war occurred between Israel and the Islamic militant group, killing more than 2,100 Palestinians and 72 Israelis.

Ismail Haniya, who is a sworn enemy of the Jewish state, had his daughter admitted for emergency medical treatment last month after she suffered complications from a routine procedure, according to two sources familiar with the case, Reuters reported.

The daughter, whose name and condition was not released due to patient confidentiality, remained hospitalized for "a number of days" before being discharged, Avi Shushan, a spokesman for Tel Aviv's Ichilov Hospital, said.

She had been in "critical, life-threatening condition" when she arrived at the facility two weeks ago, the official said, adding that she was in "stable" condition when she returned back to Gaza.

Haniya, who has 13 children, is a Hamas leader in Gaza, serving as a deputy to Hamas chief Khaled Meshaal, who lives in exile. During the seven-week-long war, he spent most of the battle hiding after an Israeli airstrike destroyed his home in the northern part of the Gaza Strip.

Although a spokeswoman for the Israeli military confirmed the daughter's hospitalization, a senior official in the Gaza health ministry identified the patient as a sister, and not the daughter, of the former Palestinian prime minister, Agence France-Presse reported.

Last year, Haniya's one-year-old granddaughter was also hospitalized in critical condition at an Israeli hospital. She reportedly died later after being transferred back to a Gaza hospital.

Meanwhile, Israel is known to allow thousands of Palestinians from Gaza to cross the border into their country for certain humanitarian cases, according to the World Health Organization. Since the war ended on Aug. 26, dozens of Gazans have been shifted to Israeli hospitals, which is able to provide patients with better resources and technology.

"An Israeli official said that in most cases, a Palestinian doctor's request  to allow a patient across the border for urgent treatment was sufficient, which suggests Haniya may not have been personally involved in his daughter's application," according to Fox News