12/11/2013 10:28 GMT

Bulgaria Protests: Students Chain Doors Of Sofia University In Anti-Government Protests (PICTURES)

Bulgarian students have chained the gates to their university and demanding the government resign, following months of protests over poverty and corruption.

Sofia University was locked up by its students, bringing academic business at the institution to a "complete halt", according to the Novinite news agency.

SEE ALSO: Naked Students At Hungarian Kaposvar University Protest Against Mini Skirt Ban

London University Bans Students From Protesting

Thousands of Bulgarians took to the streets on Sunday to mark the 150th day of anti-government demonstrations, chanting “Resign,” “Mafia” and “Shame on you” as they passed parliament, AFP reported.

Story continues below slideshow..

Photo gallery Sofia University protest See Gallery

Chaining the gates of the country's biggest university was the latest step in a three-week protest by students, who had previously occupied a lecture hall.

Sit-ins, are also taking place at another 15 universities across the country. "We are protesting against poverty and unemployment", a student declaration said, quoted by AFP news agency. "We are protesting before we become beggars with a higher education."