Four female students from Hebrew Union College, including two Americans, were asked to lift their shirts and skirts for security before being allowed to enter the Western Wall plaza.

The women were part of a group of 15 rabbinical, cantorial and Jewish education students from North America and Australia who joined about 200 men and women in an egalitarian morning service held Wednesday morning on the plaza behind the men’s and women’s sections.

The women were questioned, pulled aside into a private room and asked to lift their shirts and skirts. The Western Wall security did not say what they were looking for, according to the Israel Religious Action centre of the Reform movement, or IRAC, though it is likely that they were looking for a small Torah scroll or other religious articles.

Thousands of people a day enter the plaza after walking through metal detectors. “There is no reason to do this to these four young women,” Steven Beck of the IRAC told JTA. “It is purely an intimidation tactic.”

The egalitarian service took place on Wednesday morning after the monthly Rosh Chodesh service of the Women of the Wall group.  About 100 women participated in the service for the first day of the month of Elul. The women were able to bring a Torah scroll into the women’s section and read from it during the service, according to the group. Some 15 women sounded shofars at the end of the service, as is traditionally done in the month leading up to Rosh Hashanah.

The women generally have been barred from bringing Torah scrolls into the women’s section, by order of the Western Wall Heritage Foundation and the rabbi of the Western Wall. The group has held its monthly Rosh Chodesh prayer for the new Hebrew month in the women’s section for more than 25 years.

The women were disrupted about a half hour into their service by protesters that the group described in a statement as “ultra-Orthodox women and girls,” who “arrived shouting, whistling, spitting and cursing incessantly.” Security guards at the site did not act to prevent the disruptions despite requests to do so, according to the Women of the Wall.

Beck said that the egalitarian service also was disrupted by protesters, though primarily men.

The IRAC said it will submit formal complaints about the body searches on the students.

“This is a new low for the Rabbi of the Kotel trying to intimidate, humiliate, and exclude liberal women trying to pray at the Western Wall,” Rabbi Noa Sattath, director of the Israel Religious Action centre, said in a statement. ” Despite today’s events these four brave Jewish leaders will continue to love Israel, the Wall, and justice. Today we are submitting formal letters of complaint to the Attorney General and the Prime Minister’s office demanding they act to address the events of this morning. The Government knows that the only way forward is to implement the Kotel compromise that we all agreed to.”

The compromise refers to a government agreement to expand and upgrade the egalitarian prayer section at the southern end of the Western Wall. The agreement puts the upgraded section on equal footing with the single-sex sections; it would be run by a special committee with no input from the Chief Rabbinate.

In June, the Cabinet suspended the deal passed in 2016 as a result of negotiations between the Reform and Conservative movements, the Women of the Wall, the Jewish Agency for Israel and the Israeli government. The suspension came after the government’s Charedi coalition partners pressured Prime Minister Benjamin Netanyahu to scrap the agreement. The government has said it plans to go forward with the expansion of the egalitarian section despite the freeze.