Officials still aren’t sure what caused the stink. One woman was taken to the hospital because of it. The odor affected the morning commute. Charles Seaton, a spokesman for New York City Transit, said the F train station at 6th Avenue and 23rd Street in Manhattan was evacuated at 9:47 a.m. because of a strong gas odor but it was reopened about 10:15. Everything seems back to normal for Tuesday’s communte.