Equatorial Guinea produced the biggest upset in Africa Cup of Nations history with a 4-0 thumping of hosts Ivory Coast on Monday that put the small country into the last 16 as Group A winners and left the hosts facing potential elimination.

Emilio Nsue scored two goals to take his tournament tally to five and Pablo Gannet and Yannick Buyla added two more as the country of 1.6 million swept aside the home team with a sensational result.

The former Spanish colony finished top with seven points, ahead of second-placed qualifiers Nigeria on goal difference.

Ivory Coast could still go through to the knockout phase as one of the best third-placed finishers but face an anxious wait over the next days to see whether they make it.

The Ivorians dominated the first half chances but were rusty in front of goal with Nicolas Pepe having the best effort before a solitary attack at the other end saw Nsue grab a simple finish in the 42nd minute to put the underdogs ahead at the break.

Ivory Coast's Ibrahim Sangare and substitute Jean Philippe Krasso did have the ball in the net but both efforts were marginally offside.

Then the tide turned firmly in favour of Equatorial Guinea as they set about wrapping up a barely believable win.

A brilliant curling free kick from Ganet extended their surprise lead in the 73rd and two minutes later a breakaway saw Nsue make it 3-0 to the astonishment of the crowd at the Alassane Ouattara Olympic Stadium.

Ivory Coast’s humiliation was completed as substitute Buyla’s scuffed effort made it 4-0 for the heaviest defeat ever suffered by a Cup of Nations host.

It was also the biggest loss at home for the Ivorians, who could do little right in the match.

They left the pitch with an armed escort to deafening jeers from their own fans but could yet get a reprieve if they finish as one of the four best third-placed finishers.