The largest U.S. police union has demanded that online e-commerce giant Amazon remove a third party vendor shirt that supports the movement Black Lives Matter.

The union – Fraternal Order of Police – demanded that the online retailer follow the lead of Walmart and remove the shirt that has the phrase – Bulletproof: Black Lives Matter – printed across the chest area.

The report was from The Guardian late last week.

Walmart took the shirt off its online store after the police union had described it as being offensive.

The president of the FOP Chuck Canterbury sent a letter to CEO Jeff Bezos at Amazon that requested Bezos support of the union through increasing the trust between the members of law enforcement and the different communities they serve across the United States.

As of early Monday, the shirt was still being listed for sale on Amazon, but was not currently available.

The president of the police union said that he was not surprised Amazon would not remove the complete listing and described the Amazon website as being a liberal marketer.

Canterbury added that the issue remained an important one due to the amount of overall violence that has been demonstrated by the marches by people supporting Black Live Matter as well as the fact eight police officers were killing while protecting the protesters at protests of Black Lives Matter. He was referring to the killings of police in Baton Rouge and Dallas over this past summer.

On Tuesday of last week, Canterbury sent Douglas McMillon the CEO at Walmart a letter that asked the retailer to remove what he called offensive shirts from their store.

He urged that the Walmart CEO prohibit the use of Walmart’s stores as well as website of the shirts that he called offensive.

Shirts at that time were sold through the website of Walmart by Old Glory Merchandise.

As with many other retailers online, we have million of different items on our marketplace that third parties offer including Black Lives Matter, Blue Lives Matter and one that promotes All Lives Matter products, said a prepared statement by Walmart.

In that same statement it said that after hearing the concerned voiced by customers, the company was removing the item that has a reference to bulletproof.

The police union planned to continue pressuring retailers that continue to sell merchandise for Black Lives Matter.