mosques and other islamic buildings however in certain urban neighbourhoods and villages became the only targets of violence against architecture, while in other locations every mosque and all islamic buildings became targeted. often at the conclusion of an attack on a village and the fleeing of the population from villages, towns and cities, attacks on mosques, other islamic buildings and architecture were undertaken and widespread by the yugoslav serb army. attacks at times entailed the toppling of a mosque minaret, having minaret tops shot off, explosive devices placed in a minaret or within a mosque, bulldozing of mosques, fires started in a mosque, artillery aimed at a minaret and walls riddled with bullets. the vandalisation of mosques also occurred, anti-albanian and anti-islamic vandalism, the graffiting of facades with images and text and in certain examples, anti-albanian and pro-serbian graffiti was inscribed on the walls of a mosque. graffiti left on mosques by the yugoslav serb army often had the words "kosovo je srbija" (kosovo is serbia), "srbija" (serbia), "mi smo srbi" (we are serbs) while the most common graffiti was a cross with four cyrillic cs in each corner, a serbian national symbol. in an in depth survey conducted by physicians for human rights of kosovo albanian refugees, it found they were often not present to see the destruction of islamic architecture due to their flight. these events were also corroborated in reports by human rights organisations regarding the activities of yugoslav serb forces and their intended victims being limited in seeing such destruction. there were in some cases eyewitnesses to these attacks on historic monuments.