Two off-duty D.C. Police officers thwarted separate robberies yesterday during a busy 15-hour period in which five persons -- two holdup men and three holdup victims -- were shot and wounded in a rash of robberies throughout the day.

According to police, off-duty officer George R. Hawkins II shot and wounded one of three men who robbed a 7-Eleven store at 421 13th St. NE about 12:30 a.m. Hawkins, who works as a cashier in the store, was approached by three men, one with a handgun, who demanded money from the cash register, police said.

After they were given the money and were heading for the door, Hawkins drew his service revolver, announced he was a police officer and ordered them to halt, according to police. The men fled and Hawkins fired his gun, striking Harvey Lee Barnes, 29, of 624 K St. SE, in the spine. Barnes was taken to Washington Hospital Center where he was listed in good condition yesterday. The other two men escaped.

Hawkins was placed on routine administrative leave pending an investigation of the incident. According to Lloyd Scott, security manager for the Washington area 7-Eleven stores, D.C. Police believe they have "an open and shut" case since the entire incident was recorded by a videotape camera in the store. It was the first time a robbery and shooting were recorded on videotape in an area 7-Eleven, Scott said.

In another robbery, to men -- one wielding a sawed-off shotgun -- walked into Mosby's Jewelry Store at 1027 U St. NW at 2:15 p.m., yesterday and demanded jewelry and money from the owner, police said. One of the men jumped over the glass punter and began struggling with the store owner, who pulled a gun and shot him. Both the wounded man and his companion fled.

Off-duty narcotics Det. John Robinson spotted the two men running out of the store, followed them a short distance and watched them enter a House at 1845 9th St. NW.

He then returned to the jewelry store where the owner told him he had been robbed. Robinson, accompanied by several backup officers, returned to the 9th Street address, where he arrested the two men.

Charged with robbery were Keith Taylor, 19, of the 9th Street address, and Antonio Torain, 28, whose address was not immediately known. Torain was taken to Washington Hospital Center where he was listed in stable condition.

In another incident, police said two men were wounded by gunfire as they walked near 11th and O Streets NW about 11 p.m. Thursday. Ricks Dorsey, of 1252 10th St. NW, and Moses Titus, 31, of 1132 16th St NE, were listed in stable condition yesterday at Washington Hospital Center. Police said they do not know who fired the shots.

In a fourth incident, Raymond James Johnson, 39, of 6420 14th St. NW, was shot in the chest during a robbery about 11:30 p.m. Thursday near 3rd Street and Florida Avenue NW, police said. No one has been arrested in the shooting, they said.