People mourning the deaths of the five police officers fatally shot in Dallas on Thursday have started to leave flowers and notes at the National Law Enforcement Officers Memorial in D.C.
The memorial in Northwest D.C., near the Judiciary Square Metro station, is the nation's monument to law enforcement officers killed in the line of duty. Carved into its curving marble walls are the names of more than 20,000 officers who have died in the line of duty.
D.C. resident Dan Durak visited the memorial to pray. He said his brother is a police officer.
"It seems like every day there's another story about this tension between police relations in this country. It's troubling because I know we can do so much better," he said.
D.C. Mayor Muriel Bowser and Police Chief Cathy Lanier laid a wreath at the memorial on Friday.
"Today we mourn the fallen. We pray for them, and we pray for their families. Solidarity with Dallas," Bowser said.
D.C. flags have been lowered as a sign of solidarity with the city.
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New York police left a bouquet and a note that read "We stand with Dallas." Chicago police left flowers.