Riham Dawabsha died Sunday night at the Sheba Medical Center at Tel Hashomer in Ramat Gan, according to hospital officials.

Dawabsha was the mother of the Palestinian toddler Ali and the wife of Saad Dawabsha, both of whom succumbed to wounds inflicted in the firebombing of their home in the northern West Bank village of Duma by suspected Jewish extremists on July 31.

Riham’s brother Hatem Dawabsha also confirmed she had passed away.

The Palestinian Authority announced on Sunday it was preparing to send a medical team to evaluate and monitor Riham’s condition after her family members told Al-Jazeera on Sunday that she was “clinically dead,” and following a sharp deterioration in her condition confirmed by her Israeli medical team on Saturday.

Dawabsha, 26, sustained third-degree burns on 90 percent of her body and was fighting for her life for the past five weeks after assailants — security officials say evidence points to Jewish extremists — hurled firebombs through the window of the family home in the West Bank city of Duma early on July 31, killing 18-month-old Ali. Saad was also critically wounded and died days later. The family’s second son, five-year-old Ahmed, is being treated at Tel Hashomer for massive burns.

The assailants also daubed Hebrew graffiti at the home.

Five-year-old Ahmed Dawabsha lies in his hospital bed at the Chaim Sheba Medical Center at Tel Hashomer, August 24, 2015. (Eric Cortellessa/Times of Israel)

Five-year-old Ahmed Dawabsha lies in his hospital bed at the Chaim Sheba Medical Center at Tel Hashomer, August 24, 2015. (Eric Cortellessa/Times of Israel)

Ahmed’s condition has improved, and he has been seen on Israeli TV speaking and eating, and asking about his parents.

The Palestinian medical team sent to monitor Riham Dawabsha was to be headed by Dr. Kamal al-Shakhra from the PA Health Ministry and Eyhab Zeitawi from the Civil Affairs Ministry, according to the Palestinian news agency Ma’an. The team was charged with making “decisions in case of any emergency,” according to PA Health Minister Jawwad Awwad.

The terror attack on July 31 shook Israeli society.

Israeli politicians roundly condemned the attack, but some opposition MKs from left-wing parties accused right-wing lawmakers and the government of generating a public atmosphere that enabled the attack. President Reuven Rivlin said Israel had been lax in fighting Jewish terrorism.

Inside the room of the Dawabsha home in Duma. A doll wrapped in a Palestinian flag rests in a stroller to honor Ali. (Eric Cortellessa/Times of Israel)

Inside the room of the Dawabsha home in Duma. A doll wrapped in a Palestinian flag rests in a stroller to honor Ali. (Eric Cortellessa/Times of Israel)

In the wake of the attack, the security cabinet approved a request by Defense Minister Moshe Ya’alon to employ “administrative detention,” or arrest without trial for terror suspects, against Jewish members of extremist organizations believed to be engaged in attacks against Palestinian civilians. Such detention is often used against members of Palestinian terror groups.

Several such arrests of right-wing activists have been made, but no evidence has yet been made public about any direct links between Jewish extremists and the attack in Duma.