A whopping 71 people were arrested in Portland during the fourth night of anti-Trump protests that saw police hurling flash grenades and tear gas on demonstrators.

Authorities say most individuals failed to comply with several lawful orders to vacate city streets in the downtown area of the city.

In addition, projectiles including road flares and bottles were thrown at police officers throughout the evening. A police vehicle was also spray painted with an anti-Trump message.

Five people were given criminal citations, while 67 people were booked into the Multnomah County Jail. A total of nine people did not have a mugshot photo taken by authorities.

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Pictured: (Top L-R) Michelle Ann Bach, 18; Nathan Willard Prime, 25; Nathaniel Prieto, 22 (Middle L-R) Noah Hochman, 30; Patrick Sottlemyre, 27; Reegan Margaret Okeefe, 18 (Bottom L-R) Robert Quandt, 27; Robert Wilson, 24; Scarlett Maddox, 24

Pictured: (Top L-R) Grant Victor Frey, 27; Gregory Thomas Liascos, 42; Jacob Snook, 24 (Middle L-R) Jacob Walter Pegg Lee, 31; James Adam Weinberg, 25; Jeremiah Barquet, 21 (Bottom L-R) Joel Samuel Brown, 25; John McKay, 20; Jordan Torrey Johnson, 27

Above protesters are detained by police after a protest against US President-elect Donald Trump in Portland on Saturday night

Everyone arrested on Saturday was also charged with a traffic citation for Failing to Obey a Police Officer.

At 11pm on Saturday, a large group of people were apprehended by officers at the intersection of Southwest Stark Street and Broadway.

A large city bus was used to transport the majority of people jail. The people arrested range in age from 18 to 54 years old.

Before the fourth night of protests began against president-elect Donald Trump, Portland Mayor Charlie Hales and Police Chief Mike Marshman called for protesters to stay home and to voice their opinions with the election in other ways.

Pictured: (Top L-R) Daniel Robert Vega, 21; David Lewis, 19; Dennis Dale, 54 (Middle L-R) Donovon Lyle Flippo, 21; Eric Rivera, 22; Erik Batterson, 27 (Bottom L-R) Evan James Bond, 25; Evan Todd Wellington, 33; Graham Parks, 35

Pictured: (Top L-R) Ahmed Mohemed Salah, 22; Alexa Nelson, 22; Anthony Alexander Hurley, 27 (Middle L-R) Bao Vrong, 29; Benjamin Bolen, 32; Carlene Beatrice Houk, 22 (Bottom L-R) Carlos Andres Arias, 27 and Chris Michael Russell, 32; Daniel Michaels, 28

Above demonstrators are detained by police in Portland on Saturday night during the fourth night of anti-Trump protests in the city. It is unclear if any of those who are pictured above were actually arrested

'Going to the streets for another night is not going to keep Donald Trump from taking office. It isn't going to change anything,' Hales said.

'If you're upset with the election, please don't come out and protest.

'We are done with criminal activity in this city. It's time to move on and to move forward.'

In order to control the huge crowd of protesters, police resorted to using tear gas and flash grenades.

Pictured: (Top L-R) James Mattox, 27; Robert J. Baker, 27; Chynna Marie Draeger, 24 (Middle L-R) Anna Christell Ogier, 25; Daniel Lee Garrett, 43; Bianca Marie Ferreria, 29 (Bottom L-R) Jake Bartlett Winchester, 26; Randal Lee Smith, 38; Taylor Ej Thomas, 19

Pictured: (Top L-R) Joseph Owan Gibson, 33; Justin Sean Tuli, 22; Katharine Mae Moore, 38 (Middle L-R) Kenneth Lee Shields, 37; Kevin Grigsby, 30; Lars Timothy Linge, 18 (Bottom L-R) Mario Villanueva, 18; Martin Farias, 20; Matthew McGowan, 21

Since the protests started after the election, one person was shot, several buildings have been vandalized, traffic was disrupted and more than 40 people had been arrested total prior to Saturday night.

The person who was shot suffered non-life-threatening injuries and is being treated at a local hospital.

Police arrested two 18-year-old men in relation to the shooting. They were charged with attempted murder and unlawful use of a weapon.

Above police block off an area during a protest against US President-elect Donald Trump in Portland, Oregon on November 12

Pictured: (Top L-R) Seneca Cayson, 19; Sydney Hobbs, 18; Taylor Joan Horton, 20 (Middle L-R) Tyler Joseph Boyes, 21; Tyson Lee Williams, 20; Ulizes Escobar, 18 (Bottom L-R) William Kerr, 29; Zoe Rain Barber, 24

During Friday night's protests in the city, police arrested 17 people.

Outside of Portland, several other anti-Trump demonstrations took place in cities such as Los Angles, New York, Atlanta, Salt Lake City, Washington DC and Phoenix on Saturday.

Of all the protests in the cities, Portland has seen the most violent demonstrations.

Above a demonstrator gestures a peace sign after a protest against US President-elect Donald Trump in Portland on Saturday night

Pictured left is Ariyuana Robinson, 18, and right is Daniel Michaels, 28