Charges against two suspects accused of killing a delivery driver during a wild police chase in Washington DC have been dropped.

Moped driver Nolberto Meza, 46, was struck and killed by drivers of a stolen vehicle as they were being chased by United States Park Police on Saturday.

Police detected a stolen vehicle, a silver 2014 Honda Accord, in Northwest DC shortly after 5.30pm ET and attempted to stop the car, according to the Metropolitan Police Department (MPD).

The vehicle fled towards the William Howard Taft Bridge and crossed into the opposite lanes of traffic, striking Meza.

Meza was ejected from his moped and onto the street, and was pronounced dead at the scene.

The alleged stolen vehicle finally came to a stop after colliding with a Toyota RAV4, and the three occupants attempted to flee but were quickly arrested.

Police charged the driver of the stolen car, 24-year-old Tomas Anderson, with murder. The additional occupants, 19-year-old Donnie Palacios and an unidentified 16-year-old male, were charged with unauthorized use of a vehicle.

However, on Monday, the US Attorney's Office dismissed the charges against the men, citing insufficient evidence to prosecute.

'The office is not yet in receipt of all information needed to make a decision,' the US Attorney's Office said in a statement to Fox 5.

'Once the facts are clear and the evidence is in hand, we will make a charging decision.'

Meza's niece told WJLA he was an immigrant who came to the US from Venezuela to make money to support his family.

'Every day that he was here, he was working, working for a better future for our family in Venezuela,' said his niece, Veronica Sanabria.

The family has launched a GoFundMe to raise money to send his body back to Venezuela for a funeral. 

'I am not only crying for my uncle, but also because we want to ask for justice. It was not my uncle's fault,' Sanabria said.

'He was only working; he was only delivering food. He was fighting for his family day after day.'

Sanabria called for justice for her uncle and raised concerns over the police's decision to chase suspects in a busy area.

'From my point of view, I think that both [the police and suspects] were at fault,' she said. 

'Because the police should not do a chase in an area like that, and it was the suspects who obviously ended the life of my uncle.'

US Park Police sent its condolences to Meza's family and said it is conducting an internal review of the chase to 'ensure compliance with agency policies and procedures.'

'Criminals who flee from law enforcement put innocent bystanders in danger. Public safety remains our highest priority, which is why we work to remove criminals from our streets,' the agency said on X. 

The Daily Mail has contacted the US Attorney's Office for comment.