Robert Mugabe resigned as president of Zimbabwe on Tuesday, parliament speaker Jacob Mudenda announced, bringing the curtain down on a 37-year reign.

Mugabe was swept from power as his  autocratic rule crumbled within days of a military takeover.

“I Robert Gabriel Mugabe in terms of section 96 of the constitution of Zimbabwe hereby formally tender my resignation… with immediate effect,” said speaker Mudenda, reading the letter.

The bombshell news was delivered to a special joint session of parliament.Lawmakers had convened to debate a motion to impeach Mugabe, who has dominated every aspect of Zimbabwean public life since independence in 1980.

It was greeted on the streets of the capital Harare with car horns and wild cheering. Zimbabwe’s Parliament has erupted in cheers as the speaker announces the resignation of President Robert Mugabe.

The speaker stopped impeachment proceedings to say they had received a letter from Mugabe with the resignation “with immediate effect”. It is an extraordinary end for the world’s oldest head of state after 37 years in power.