Another woman has died during the delivery of her baby in a Sofia maternity ward Monday.

The tragic incident occurred around noon at the 1st Sofia Maternity Ward "St Sofia." The baby is doing well.

According to unofficial information, the cause of death was pulmonary embolism. Doctors have recommended a cesarean. This was a second child for Daniela Dimitrova, 31.

Relatives of the woman say there were no problems during the pregnancy and she went to the hospital in good health. They also inform that doctors even refused to tell them the name of their colleague, who did the delivery.

The husband threatens to sue the maternity ward.

The Sofia City Hall is probing the incident since this is a municipal hospital.

The Head of "St. Sofia," Dr. Elian Rachev had been unavailable for comments – first he did not answer his cell phone and later turned it off. The Head of the maternity ward has also declined comments over pending results from the official probe.

The string of tragic deaths began on September 12 when college student Deyana, 19, was admitted at the "Sheinovo" maternity ward. She died after fighting for her life for 42 days. She was released from the hospital without a diagnosis and all necessary tests. The probe showed the cause of death was sepsis, due to inadequate doctor's care. Deyna had been transferred back and forth to four different hospitals, two of which were fined.

Another mother, Nadezhda Uzunova, 35, died a week ago at "Sheinovo" after coming to the hospital several times and being sent back because the doctor on duty kept telling her she did not "yet have the required signs for being ready to give birth."

Nadezhda passed away just minutes after being admitted in the hospital, while the baby was placed on a respirator, but also died the next day.

Bulgaria's Health Minister, Stefan Konstantinov, stated that the hospital was to be blamed for the tragic double death. The Executive Director of Sheinovo, Dr. Ivan Kostov, resigned in the aftermath.

The results of three probes – from the Medical Audit, the Regional Health Inspectorate, and the Prosecutor's office, which are taking place in the maternity ward over the tragic incident, are pending.