For Jacob Roter, who often boards the subway at Myrtle Ave. in Bedford-Stuyvesant and at Marcy Ave. in Williamsburg, finding out that two men had been stabbed over the past week while riding the train at those stations had him wondering if he should ride his bike more often.

“Violence is a part of human nature,” said Roter. “I wish it wasn’t. So insane. It’s sad when you hear about innocent people being attacked.”

Police said the first of the two stabbings incidents took place on Sunday around 2:40 a.m. on the elevated tracks at Broadway and Myrtle Ave.

Investigators said the 31-year-old victim was riding a J train when a man who he was arguing with stabbed him in the torso and fled the scene.

The NYPD's latest data shows transit crime is down by almost 8%, as compared to the same time period last year.

Through June 11 of this year, 958 transit crimes have been reported, police data shows. Last year during the same time period, 1040 transit crimes were reported.

Naomi Neuman, of Bushwick, said while she’s hopeful that an arrest will be made, she admits to feeling a bit rattled after learning that at least four separate subway stabbing have taken place in Brooklyn and Manhattan since Tuesday. 

“It’s a recent spike,” said Neuman, “So I guess be more alert. I still take the train at night because I don’t have a car or anything.”

Police said the man stabbed in Brooklyn early Sunday was in stable condition. Also in stable condition are two adult women who police said were slashed in the leg by a man who fled the Lexington Avenue and East 86 Street subway station around 420 p.m. Sunday.

Sisters Andrea and Sarah Wilson of the Upper East Side rely on the station and were heading home when they learned of the attacks.

“I take this train home every day after work,” said Andrea Wilson. “There’s a lot of dangerous things that have been happening lately and it’s definitely scary. 

“We heard about it in another station,” said Sarah Wilson. “We were coming to this one and for a second I didn’t want to come. I was just scared. As soon as we got off the train. I was looking for a way out.”

The two separate stabbing incidents from Sunday come in the wake of a pair of deadly stabbings involving commuters. Tavon Silver, 32, of the Bronx was pronounced dead at a hospital after he was discovered around 4 a.m. Saturday on a southbound 4 train as it entered Union Square, according to authorities.

This weekend’s stabbings also follow the arrest of 20-year old Jordan Williams from Jamaica, Queens. Williams has been charged with manslaughter and criminal possession of a weapon in connection with the stabbing of a 36-year-old man this past Tuesday night on a J train in Williamsburg.