Just two days after the stabbing at the National Zoo, Mayor Gray is calling for increased security at the location.

“This incident highlights the need for the National Zoo Police and other outside agencies to coordinate more closely with our Metropolitan Police Department to ensure public safety on high-turnout days and special events, such as Monday’s event at the Smithsonian National Zoo,” Gray said.  “(MPD Police) Chief Lanier is meeting with her counterpart in the National Zoo Police to discuss this incident and work toward better coordination to prevent such events in the future."

Unlike many D.C. museums, the Zoo does not have metal detectors, a measure that some locals are calling for after the violent incident.

A number of locals gathered around the scene of a shooting at 14th and V streets in NW this afternoon, a violent incident that has left many U Street community residents concerned.

"It's just getting silly, like this shooting," said one U Street local.  "The community is getting fed up over it, worried, scared, especially in broad daylight...you're concerned."

Check out the video above to see more reaction from U Street neighborhood residents, including one man who said, "You can't even walk in the streets without something happening...people can't go about their normal business without someone doing something outlandish like a shooting in broad daylight."

For all of the current information about the U Street shooting story, click here.

UPDATED DETAILS ON COLUMBIA HEIGHTS SHOOTING:

This comes to us from MPD:

This morning, a 17 year-old juvenile male attempted to rob a citizen at gunpoint in the 1300 block of Harvard Street, NW.

The suspect tried to snatch the complainant's purse but failed. He then fled the scene on foot. A witness that had observed the attack followed the suspect to the 1400 block of Columbia Road.

The witness observed 2 Special Police Officers walking in the block and alerted them to the armed robbery suspect. The SPOs approached the suspect and ordered him to the ground. Instead, the suspect reached for his waistband.