"On the outskirts of Grozny an unknown young woman exploded herself," acting head of the Chechen Interior Ministry Apti Alaudinov told reporters.
Following the incident, police officers and civilians hadn't sustained any injuries, the official added.
Alaudinov noted further that the incident took place at about 4:00 p.m. local time (13:00 GMT) when the young woman came to the federal police post ignoring officers' demands to stop. She staged the blast after warning shots.
According to a source cited by Russian media, the suicide bomber was not a Chechen national.
The last suicide bombing at a checkpoint in Grozny had been reported in May 2016, when Chechen police stated that six police officers had been wounded as a result of a suicide attack in the Chechnya region.