The detonation took place at the time when the office car carrying customs committee chairman Armen Avetisyan drove up to the entrance.
The committee chairman did not suffer, but the blast damaged his car.
Top committee officials explain the incident as due to energetic measures undertaken against the shadow economy since the beginning of the year, and also tighter customs administration.
"The morning's incident shows once again that the steps to improve and tighten up customs administration are having effect," it was noted at the press-service.
"To those who hope to weaken with such steps the will of the committee leadership in the struggle against the black economy we would like to say that the committee will be consistent in exposing customs irregularities through stricter administration," it was pointed out at the press-service.
