FORT WORTH, Texas -- Students rushed Dallas City Hall Tuesday in the second day of marches for the rights of illegal immigrants, leaving at least three injured; students also gathered at Kiest Park in Oak Cliff and Fort Worth City Hall.

The students flooded the most floors of Dallas City Hall, disrupting a council meeting, before police and security guards managed to usher them back out. Councilwoman Elba Garcia left a closed-door meeting to used a police-car public address system to ask students to return to school.

Hundreds of students were gathered outside Dallas City Hall with flags and signs. Several students were seen wading in the reflecting pond in front of City Hall.

One girl was carried out of the water and attended to by paramedics. At least one other person was injured moments later.

Police lined the City Hall entrance, and elevators inside the building were shut down late Tuesday morning. There was no word on damage or arrests.

Video footage Tuesday showed gridlocked traffic two or three lanes wide in front of one Dallas high school, with many truckbeds packed with students who waved Mexican flags.

At Kiest Park, about 1,500 students from Dallas and Grand Prairie schools demonstrated. Dallas police outfitted in riot gear moved in on the crowd after some of the students started throwing rocks and bottles at a woman who staged a one-person counterprotest.

Dallas police said they were forced to separate the woman from the crowd. They also moved students to a different section of the park.

Police withdrew after a few minutes and watched from a distance as the students boarded buses, which took them back to school.

Students from at least four Irving high schools walked out of class at about 9 a.m. and took the Trinity Railway Express to Dallas City Hall.

Grand Prairie Independent School District said students walked out from Grand Prairie High, South Grand Prairie High, Arnold Middle School, Jackson Middle School, Kennedy Middle School and Lee Middle School. The students walked eastbound on Pioneer Parkway and ended up at Kiest Park in Dallas.

Fort Worth Protests

Students from at least four Fort Worth high schools caused some tense moments at Fort Worth City Hall Tuesday morning, according to an NBC 5 report. Several hundred students walked to municipal offices, some from as far away as Polytechnic High on the city's east side.

The crowd became unruly at times, according to the NBC 5 report. Police on foot, horseback and in squad cars worked to maintain order. At least three students were arrested, NBC 5 reported, although no one was reported injured.

School administrators pleaded with students to board buses and return to their campuses. Many of the students complied and the crowd temporarily dispersed.

Pockets of demonstrators remained at City Hall, according to NBC 5. The students said they wanted to make their voices heard on the proposed federal immigration laws.

"They work here. They work in construction. They build the houses. Not everybody else is in the hot (weather) working outside. They're inside in air conditioning. We came to help them out, you know, protest," Richie Meza said.

Fort Worth Independent School District administrators said that while the experience is educational, they expect students to make up for the missed class work.

Houston And The Nation

Hundreds of others walked out of schools elsewhere in the state.

In Houston, police said they took some students into custody and several others were cited for daytime curfew violations.

Tens of thousands of students around the country walked out of class Monday and Tuesday to protest legislation aimed at cracking down on illegal immigrants.

Legislation in Congress includes measures that would make it a crime to dispense aid to the nation's 11 million illegal immigrants, add penalties on employers who hire illegal immigrants, and would build fences along part of the U.S.-Mexican border.

The full U.S. Senate is preparing to debate a measure passed by a committee Monday that would give millions of illegal immigrants a chance at citizenship. Any bill produced by the Senate would have to be reconciled with a House bill that would make illegal immigrants felons.

Demonstrator Injured

A woman who is believed to be a Dallas Independent School District student was injured Tuesday morning while participating in the protest behind Skyline High School in East Dallas.

The incident happened when the Ford Expedition in which Yadira Ortiz, 18, was riding rolled over, DISD spokesman Donald Claxton said.

Claxton said Ortiz suffered a severed hand and was being treated at Baylor Hospital. According to Dallas police, she is in stable condition.

The SUV was traveling at a high rate of speed, Claxton said.

High School Walkouts Begin Monday

School officials estimated that on Monday, 4,000 students -- most from Skyline, North Dallas, Townview and Molina high schools -- participated in the walkouts and demonstrations.

Dallas police blocked off traffic in and around Kiest Park as students flooded the streets. Chopper 5 showed several Dallas police officers at the park.

Some students in Garland also walked out from classes at Lakeview Centennial High School Monday morning.

About 1,500 people marched in downtown Dallas on Saturday. At a dinner meeting of the Latino group LULAC, leaders announced a major rally on April 9.

"We are going to be having, hopefully it will be the largest civil rights demonstration in the history of Dallas, Texas -- 100,000-plus," said LULAC representative Domingo Garcia.

Dallas school officials said the students who participated in the rallies on Monday would receive an unexcused absence.