Atheists and other activists are calling for a cross on a World War I memorial in Rhode Island to be removed.

The Freedom From Religion Foundation says the cross is a religious symbol and thus, should not be displayed on public property.

In a letter to the mayor of Woonsocket, R.I., the atheist group claimed the cross "impermissibly demonstrates a preference for religion over nonreligion."

The cross stands at the top of a stone structure in front of the local firehouse. It was built in 1921 then rededicated in 1952 to also honor fallen World War II soldiers.

In the letter, FFRF also called out a popular "firefighters prayer" posted on the fire department's website.

So far, Mayor Leo Fontaine has not indicated plans to remove the cross.