block off

US /blɑːk ɑːf/
UK /blɑːk ɑːf/
"block off" picture
1.

bloquer, barrer

to close a road, path, or entrance so that people cannot use it

:
Police had to block off the street due to the accident.
La police a dû bloquer la rue à cause de l'accident.
They decided to block off the old entrance to prevent unauthorized access.
Ils ont décidé de bloquer l'ancienne entrée pour empêcher tout accès non autorisé.