  A recently reported transition in the electrical resistance of different
natural graphite samples suggests the existence of superconductivity at room
temperature. To check whether dissipationless electrical currents are
responsible for the trapped magnetic flux inferred from electrical resistance
measurements, we localized them using magnetic force microscopy on a natural
graphite sample in remanent state after applying a magnetic field. The obtained
evidence indicates that at room temperature a permanent current flows at the
border of the trapped flux region. The current path vanishes at the same
transition temperature $T_c \simeq 370~$K as the one obtained from electrical
resistance measurements on the same sample. The overall results support the
existence of room-temperature superconductivity at certain regions in the
graphite structure and show that the used method is suitable to localize the
superconducting regions.
