Two young girls singing the national anthem with their choir took a knee at the Seattle Mariners game on Sunday.

Video of the Mount View Elementary School choir shows the girls kneeling next to their classmates.

A photo of the students was first shared by sports writer Ryan S. Clark of the Tacoma News Tribune.

Two young girls singing the national anthem with their choir took a knee at the Seattle Mariners game on Sunday. A photo (pictured) of the students was first shared by sports writer Ryan S. Clark of the Tacoma News Tribune

Video of the Mount View Elementary School choir shows the girls (left and right) kneeling next to their classmates

'Here at Safeco Field where an elementary school sung the anthem and two students took a knee while performing,' Clark tweeted Sunday afternoon.

Colin Kaepernick, the former San Francisco 49ers quarterback, who started the controversial protest two years ago, retweeted the photo.

Another Twitter user tweeted: 'Two young girls exercising their rights @SafecoField.'

Two young girls exercising their rights @SafecoField ✊ pic.twitter.com/jOOYxnHoSM — Louis Penna (@louispenna) April 1, 2018

Kaepernick began kneeling during the national anthem in protest of racial injustice and police brutality against minorities in 2016.

He has remained a free agent since March of 2017 and is suing the NFL, accusing the 32 owners of colluding against him because of the protests.

His movement spread to other NFL players and teams and even trickled down to youth sports teams.

Former San Francisco 49ers quarterback, Colin Kaepernick, who started the controversial protest two years ago, retweeted the photo

Kaepernick (pictured in September 2016) began kneeling during the national anthem in protest of racial injustice and police brutality against minorities in 2016

His movement spread to other NFL players and teams and even trickled down to youth sports teams. Bruce Maxwell of the Oakland Athletics takes a knee during the national anthem in September 2017

A spokeswoman for Seattle's Highline Public Schools called the girls' protest an 'individual act by the students'.

'Obviously, the school district respects the First Amendment rights of our students,' Catherine Carbone Rogers told the HuffPost.

Some believed the students' parents put them up to it to protesting, while others applauded their actions.

USA Today's For The Win said: 'Kids these days are not going to accept being spectators for important discussions regarding the communities in which they live. The future is in good hands.'

The Mariners were victorious over the Cleveland Indians 5-4.