The parks service, which operates the Statue of Liberty National Park, could not confirm whether the woman was part of a protest, Somma said. ICE officers arrest and deport immigrants who are in the United States illegally, among other duties. A message left at a possible phone number for the defendant hasn't been returned.
Martin Joseph Quinn, an organizer of with the group, told CNN the climb was not supposed to be a part of their demonstration Wednesday. "We will let everyone know how they can further support her as soon as we find out more info".
Regardless, he said he felt the publicity would help the group's cause.
National Park Service officers arrested at least seven, charging them with staging an "unlawful protest" on the national landmark.
"I feel really sorry for those visitors today" who had to leave or couldn't come, spokesman Jerry Willis said. "People have the right to speak out".
The National Park Service chose to shut down Liberty Island over security concerns around 3:30 p.m., and within an hour all 4,500 visitors had been evacuated. He says federal code of regulations prohibits hanging banners from the monument.
The agency is at the centre of the Trump administration's shelved policy of separating some immigrant families at the U.S. Some 2,300 children have been separated from their families over a six-week period in April and May.
U.S. Rep. Mark Pocan (D-Wis.) introduced the bill following a trip to the southern U.S. border, where he noticed the "cruel, inhumane and un-American policies taking place at the border that are now a direct result of actions by [President] Donald Trump".
While President Trump's recent separation policy on the southern border was abandoned last week, it remains unclear when or how some 2,000 migrant children will be reunited with their parents.
Protests and evacuations at the Statue of Liberty are rare but not unheard of.
Activists hung a "refugees welcome" banner at the base measuring 3ft by 20ft. The sign was taken down about an hour after being discovered.
About 4,500 tourists were forced off the island when officials closed it, according to The New York Times, which said more than 20,000 tourists visit the Statue of Liberty every Fourth of July. Earlier in the day, Okoumou and dozens of other group members unfurled an "Abolish ICE" banner at the statue's pedestal. The Associated Press contributed to this post.