The same source said that the four men launche the balloons containing the liquid around 7:15am on 27 August, dirtying the walls of the bullring, and then fled.

According to the PSP, the alert to the authorities was given by the security of the Plaza de Touros.

According to Lusa, at about 10:15am that the walls were already cleaned.

Contacted by Lusa, a source of the communication office of the space said only that the PSP was called to the site to take care of the occurrence.