(CBS) — About 125 anti-abortion demonstrators rallied on Michigan Avenue at noon in front of the offices of Planned Parenthood.

One of the leaders of the group was Jeremiah Rauwolf.

“We are asking for an official investigation, prosecution and de-funding of Planned Parenthood,” he said, to cheers.

What they’re upset about is an undercover video of a national Planned Parenthood official.

Abortions opponents say it shows her dispassionately talking about selling fetal body parts to make a profit for the organization.

Planned Parenthood says all it does is get enough money from bonafide researchers to cover expenses.

Even so, demonstrators like Becky Bosman of Oak Brook don’t like it.

“I understand what they are saying. I don’t agree with it. I don’t think any should be sold.”

Anti-abortion leader Jeremiah Rauwolf. (Credit: Steve Miller)

Anti-abortion leader Jeremiah Rauwolf. (Credit: Steve Miller)

After an hour of speeches, the demonstrators knelt in the grass all in a line.