A doctor whose abortion clinic was described as a filthy, foul-smelling “house of horrors” that was overlooked by regulators for years was charged Wednesday with murder, accused of delivering seven babies alive and then using scissors to kill them.

In a nearly 300-page grand jury report filled with ghastly, stomach-turning detail, prosecutors said Pennsylvania regulators ignored complaints of barbaric conditions at Gosnell’s clinic, which catered to poor, immigrant and minority women in the city’s impoverished West Philadelphia section.

Prosecutors called the case a “complete regulatory collapse.”

Prosecutors said Gosnell made millions of dollars over three decades performing thousands of dangerous abortions, many of them illegal late-term procedures. His clinic had no trained nurses or medical staff other than Gosnell, a family physician not certified in obstetrics or gynecology, prosecutors said.

At least two women died from the procedures, while scores more suffered perforated bowels, cervixes and uteruses, authorities said.

He “induced labor, forced the live birth of viable babies in the sixth, seventh, eighth month of pregnancy and then killed those babies by cutting into the back of the neck with scissors and severing their spinal cord,” District Attorney Seth Williams said.

Gosnell referred to it as “snipping,” prosecutors said.

Prosecutors estimated Gosnell ended hundreds of pregnancies by cutting the spinal cords, but they said they couldn’t prosecute more cases because he destroyed files.

Gosnell didn’t advertise, but word got around. Women came from across the city, state and region for illegal late-term abortions, authorities said. They paid $325 for first-trimester abortions and $1,600 to $3,000 for abortions up to 30 weeks. The clinic took in $10,000 to $15,000 a day, authorities said.

Prosecutors said the place reeked of cat urine because of the animals that were allowed to roam freely, furniture and blankets were stained with blood, instruments were not properly sterilized, and disposable medical supplies were used over and over.

Few if any of the sedated patients knew their babies had been delivered alive and then killed, prosecutors said. Many were first-time mothers who were told they were 24 weeks pregnant, even if they were much further along, authorities said.

Prosecutors said Gosnell falsified the ultrasound examinations that determine how far along a pregnancy is, teaching his staff to hold the probe in such a way that the fetus would look smaller.

Gosnell sometimes joked about the babies, saying one was so large he could “walk me to the bus stop,” according to the report.

State regulators ignored complaints about Gosnell and the 46 lawsuits filed against him, and made just five annual inspections, most satisfactory, since the clinic opened in 1979, authorities said. The inspections stopped completely in 1993 because of what prosecutors said was the pro-abortion rights attitude that set in after Democratic Gov. Robert Casey, an abortion foe, left office.