The two felines meandered onto the right-of-way at the Church Avenue station at 11:06 a.m., the MTA said. Service was suspended in both directions between DeKalb and Stillwell avenues.
Catastrophe was avoided. The kittens eventually ran off and service resumed about 1:09 p.m., according to the MTA.
A team of MTA staff and NYPD officers were able to rescue the pair from the tracks around 6:30 p.m., a spokesman said.