The victim, in unknown condition, is reportedly 30 years old.
A two-car collision on Western Avenue sent one of the vehicles careening into the structure.
The stabbings took place around 5 a.m., officials said.
A 17-year-old boy was killed Thursday in a drive-by shooting in South Los Angeles.
The Metro Red Line station at Western Avenue and Hollywood Boulevard reopened Tuesday afternoon after two people were injured in a stabbing.
The LAPD bomb squad was called Friday to remove a trunk-load of illegal fireworks and “artillery shells” found in a vendor’s vehicle in Exposition Park, officers said.