Tuesday may have been National Night Out Against Crime, a time when residents and police pour into the streets to take a stand against the bad guys. But apparently, not everyone got the memo.

Numerous shootings and armed robberies were reported as the anti-crime celebrations were underway.

One of the earliest incidents happened in Algiers, not far from where Mayor Mitch Landrieu — at a Night Out event — announced that interim Police Chief Michael Harrison had secured the permanent post.

A 30-year-old man and a 19-year-old man were skateboarding about 5:15 p.m. when a man and woman walked up to them in the 4500 block of Patterson Drive.

They pulled out a gun and ordered the victims to hand over their belongings.

The victims complied, and the robbers ran away.

About two hours later, explosions of gunfire injured three people in two separate shootings.

The first happened at 7:15 p.m. in the 2200 block of Orleans Avenue in Treme.

A black van with two men inside pulled up to the victims, ages 27 and 21, and opened fire.

The 27-year-old victim was in critical condition at a hospital, while the 21-year-old man was in stable condition, police said.

The next shooting happened about 7:40 p.m. in the 2500 block of South Claiborne Avenue in Central City as the result of an argument.

The 29-year-old victim was shot at by two men and struck in the shoulder. Police provided no information on his condition.

Meanwhile, stick-up men kept authorities busy across the metro area. Armed robberies were reported at:

  • 9:03 p.m. in the 500 block of Wilson Street in Marrero. Two men were robbed in that incident but not harmed.
  • 10:10 p.m. in the 500 block of North Dupre Street in New Orleans. Two men on bicycles held up a 43-year-old victim. Police arrested one suspect but did not immediately identify him.

Earlier in the evening, the driver of a Jeep hit an off-duty New Orleans police officer riding his motorcycle in the 2500 block of Gen. Meyer Avenue in Algiers about 6:15 p.m.

That scene also was two blocks away from the Night Out celebration attended by Landrieu and Harrison.

Follow Danny Monteverde on Twitter, @DCMonteverde.