South Africa’s fragile unity government has been shaken again. The country’s second-largest political party broke with partners Wednesday and voted against a national budget.

South African opposition party the Economic Freedom Fighters has written to the speaker of parliament seeking to block lawmakers from meeting on Wednesday to vote on the next stage of the budget process.

Leaders in the DA told the Financial Times they feared the grand coalition — which was formed after the ANC lost its majority in May — was now “done and dusted”. The ANC “simply refused to compromise”,