Boston City Councilor Erin Murphy said her colleagues’ decision to block her request for internal communications in the city’s ongoing redistricting saga was not only unprecedented, it was immature and unprofessional.

But Ricardo Arroyo, co-sponsor of the redistricting map, and one of the six councilors who opposed Murphy’s request on Wednesday, said the move amounted to nothing more than “political theater,” as the emails she’s seeking can easily be accessed by contacting the city’s public records officer.

Murphy’s request, which was defeated after the council deadlocked in a 6-6 vote, was for a copy of the 5,816 pages of redistricting correspondence sent between all 13 councilors and Wayne Yeh, policy director for Councilor Liz Breadon, previously obtained by Attorney John Lyons, per a public records request.

Some of the emails shared with Murphy, which she submitted along with the request she filed with the City Council, appeared to point to open meeting law violations in the fraught redistricting process, as procedural matters were discussed outside of official meetings, Murphy said.

“It’s unprecedented that any council members would want to block an information request — that’s blocking the transparency of the city,” Murphy told the Herald. “The residents of the city of Boston deserve to know what’s going on in City Hall.

“When a councilor requests information to be shared, and they stall it and block it, it tells me they’re not committed to being a transparent city. They must want to hide something.”

Further, Murphy said the attempt could also be an “immature personal vendetta” against her, as she was one of the four city councilors who voted against the redistricting map that was passed last fall.

Arroyo, however, said he believes “her attempt to litigate a matter in the Council Chamber that is already in federal court is not an attempt to be transparent.”

“It’s an attempt at political theater,” Arroyo said. “If she believes an open meeting law violation occurred, she should file a complaint with the Attorney General’s office, which is the appropriate venue for that complaint.”

The drama played in the Council Chamber as closing arguments were being made in the U.S. District Court, where a judge will decide whether to implement a preliminary injunction to stop implementation of the redistricting map the council passed last fall. The City Council is a defendant in the case.

Breadon, chair of the redistricting committee, was absent from Wednesday’s meeting, and therefore did not vote, but described Murphy’s decision to name a member of her staff as “totally inappropriate and irresponsible,” in an email obtained by the Herald.

“Our staff should not be drawn into political disputes among councilors,” Breadon wrote.

Murphy said she will put forward the same request at next week’s council meeting, for a copy of the public records and a hearing to discuss the results.