Brooklyn

* Cops are searching for a teenager who disappeared from her Borough Park home.

Sharmulla Siew (pictured), 15, was last seen leaving her 55th Street home near 19th Avenue at 9:30 a.m. last Thursday, cops said.

She was wearing a gray and black spider jacket, white T-shirt, blue jeans and black Nike sneakers.

* A strangled woman was found with a do-rag wrapped around her neck on the kitchen floor of her apartment, police said yesterday.

The body of Hansuyen Armstead, 42, was discovered by her roommate in their Cleveland Street apartment in East New York at about 11:30 p.m. Monday, cops said.

* A retired Department of Correction officer was robbed as he returned to his Mill Basin home with a friend last night, police sources said.

The two were accosted near the officer’s home on Avenue T by an unidentified man with a gun and forced them inside.

The bandit noticed that the officer was carrying a gun. The thug grabbed it and fired one shot during the ensuing struggle. No one was hit. He then fled from the home with cash and the officer’s gun, sources said.

* A Brighton Beach woman pelted her boyfriend with a can of hair mousse yesterday during a fight that ended with her in handcuffs, authorities said.

Desiree Eckna, 21, argued with her 23-year-old boyfriend at 2:05 a.m. inside her Ocean Parkway apartment near Oceanview Avenue, sources said.

Eckna threw the mousse can at the victim and struck him in the forehead, cops said.

Eckna then allegedly hurled two lamps and garbage at the victim before beating and kicking him.

Cops arrested Eckna on charges of assault, menacing and weapons possession. The victim suffered minor injuries and was treated by EMS at the scene.

* A teenager attacked a woman with a bottle of bleach during a botched robbery in her Bedford-Stuyvesant laundry, authorities said yesterday.

Alfonso Williams, 19, allegedly attacked the 55-year-old victim in the coin laundry on Madison Street and Throop Avenue at 7:10 a.m. on March 3, sources said.

Williams allegedly shoved the victim and choked her while trying to take her purse.

He then grabbed a bottle of Clorox and poured it over her face, sources said.

Williams fled but was captured Monday after the victim identified him in a photo array.

A spokesman for DA Charles Hynes said Williams was charged with assault and attempted robbery.

* Two teen bandits were busted after robbing a cabdriver at knifepoint in East Flatbush, authorities said yesterday.

Ringo Delcid, 18, and Kelvin Paul, 16, confronted the 45-year-old driver as he sat counting money inside his cab on New York and Church avenues at 2:15 p.m. Monday, sources said.

One of the thieves pulled a knife, swiped $7 from the driver and fled with his accomplice, cops said.

The cabby followed the suspects to a Linden Boulevard building and called police, who found 12 plastic bags of crack cocaine on Paul, cops said.

The teens were slapped with a raft of charges, including robbery.

* A teenager was shot dead and another wounded during an argument with a gunman on an East New York street, police said yesterday.

Terrell Sutton, 16, exchanged angry words with his attacker at the corner of Hendrix Street and Livonia Avenue at 8:40 p.m. Monday, police said.

Suddenly, the suspect opened fire, hitting Sutton in the chest.

Sutton’s 17-year-old friend, standing nearby, was struck in the hand and leg.

Both victims were rushed to Brookdale Hospital, where Sutton died and his friend was listed in stable condition. The shooter fled.

Manhattan

* An off-duty police officer was arrested on DWI charges yesterday after slamming his car into a parked vehicle on the Lower East Side, police said.

Michael Matlack, 24, assigned to the Sixth Precinct in Greenwich Village, got into the accident at 6 a.m. on Suffolk and Delancey streets, cops said.

Matlack was taken to Bellevue Hospital, where he was listed in stable condition. No one else was injured.

The Bronx

* Police are searching for a gun-toting thief who robbed a Mott Haven store.

The crook, a light-skinned black man with freckles, brandished a gun as he walked inside the bodega on Bruckner Boulevard and Alexander Avenue at 5 p.m. on Feb. 26, cops said.

He ordered a clerk to turn over cash.

The suspect was sporting several rings and a wristwatch, and was last seen wearing a green jacket, a hooded black sweatshirt, blue jeans, brown boots and a black skull cap.

Staten Island

* A mugger was arrested for robbing two teens at gunpoint near the Staten Island Mall in January, authorities said yesterday.

Angel Gonzalez, 23, pointed a handgun at the youths on the corner of March Avenue and Windham Loop at 5:35 p.m. on Jan. 12, cops said.

Gonzalez allegedly grabbed his victims’ wallets and fled.

A spokesman for DA Daniel Donovan said Gonzalez was tracked down Monday and charged with robbery.

* Cops nabbed a woman in Tompkinsville after she allegedly stole a car and other property, authorities said yesterday.

Police caught Lisa Scala, 30, seated in a 2006 Toyota on Brook Street and Westervelt Avenue at 5:15 a.m. Monday, sources said.

Cops frisked Scala and recovered a stolen wallet containing a credit card along with a pilfered cellphone, sources said.

She was charged with grand larceny.

* A man blew his brains out in front of stunned commuters as he sat on a bench at the ferry parking lot at the start of the evening rush hour yesterday. The unidentified man was in his 50s.