(AP) Law enforcement officials are beefing up security for a LGBT pride festival in Washington, D.C., after a deadly shooting at a gay club in Orlando.

D.C. Mayor Muriel Bowser said in a statement that she has been briefed by police Chief Cathy Lanier about increased security measures ahead of Sunday's Capital Pride Festival.

DC Police tweeted that festivalgoers should expect extra police presence Sunday.

Bowser said Washingtonians "will not be deterred by hate as we gather to celebrate love."

Festival organizers said that there will be moment of silence for the victims of the Florida shooting at 1 p.m.

Officials said the shooting at the Orlando nightclub left at least 50 people dead, making it the worst mass shooting in American history.