WASHINGTON (JTA) — The Anti-Defamation League urged authorities to probe the slaying of a Muslim girl in suburban Virginia as a hate crime.

“We urge the Fairfax County Police Department to investigate the murder as a possible bias crime,” Doron Ezickson, the ADL’s DC director, said in a statement Monday. “ADL has communicated that to law enforcement and we have reached out to ADAMS to offer any assistance.”

ADAMS is the acronym for the All Dulles Area Muslim Society, the mosque that Nabra Hassanen had worshiped at in Washington’s northern Virginia suburbs in the pre-dawn hours Sunday before heading to a restaurant with friends for breakfast. Muslims fast from dawn to dusk during the month of Ramadan.

A motorist confronted the friends and assaulted the victim as they were walking back to the mosque, according to reports. All but Hassanen fled to the mosque, where people alerted authorities. Hassanen’s body was found later in a pond.

Police arrested Darwin Martinez Torres, 22, and he was charged with murder, but told the Washington Post they were not investigating the killing as a hate crime. They did not explain why.