Six Hungarian opposition parties have announced they will work together to defeat Victor Orbán at the next general election.

The group of centre-left and centre-right parties, citing “the will of their constituents”, announced they will nominate a unity candidate in each of the country’s 106 constituencies and will begin formal talks to prepare for the elections in 2022.

In a joint statement, they also announced that they intend to agree a joint programme of government and will govern together should they achieve a majority.

The new alliance will have its first major test in just two months time, with the party’s agreeing a unity candidate to contest a by-election in Szerencs, after the town’s Fidesz MP died in a car crash.

The news follows polling from last month found that 83 percent of opposition voters believe the parties should cooperate and form a single party list for the next general election.

Former Prime Minister and leader of the Democratic Coalition Ferenc Gyurcsány has also called for co-operation between the opposition parties, citing the success of such an arrangement at last year’s local elections. Fidesz candidates were defeated in a number of cities, including Budapest, after opposition parties formed an informal coalition.