Carlos Bacca was part of the Colombia side that finished third at this summer's Copa America Centenario. FREDERIC J. BROWN/AFP/Getty Images

West Ham are in advanced talks over the signing of AC Milan striker Carlos Bacca, sources close to the Premier League club have told ESPN FC.

However, Bacca's agent, Sergio Barila, has confirmed to Fantagazzetta that Atletico Madrid and Paris Saint-Germain are also interested in the 29-year-old.

The Colombia international, who joined Milan from Sevilla last year, scored 18 Serie A goals as the Rossoneri finished seventh but Barila said last month that he was open to an exit due to the club's failure to qualify for Europe.

Barila added that West Ham, who qualified for the Europa League at the third qualifying round after finishing seventh last season, had seen an offer rejected.

Sources have told ESPN FC that West Ham are now in advanced negotiations to sign Bacca and are confident of completing a deal.

Barila has told Fantagazzetta that Atletico and PSG -- now managed by former Sevilla boss Unai Emery -- have expressed an interest in the striker but said there was interest from elsewhere, without naming West Ham.

"All I can say is that these clubs are not the only ones who have made a move for him," he said. "Other big clubs have enquired about him."

He added: "There was firm interest from China in January with substantial offers, but Carlos wants to be a protagonist at the highest levels in Europe still and he has no intention taking [China] into consideration. There will be time for this kind of choice later, certainly not now."

Bacca is on holiday following the Copa America Centenario, where he helped Colombia to a third-place finish, and Barila said: "When he gets back, we'll talk to Milan and evaluate the situation."

West Ham, whose efforts to sign Lyon striker Alexandre Lacazette now look to have failed, have already brought in Havard Nordtveit and Sofiane Feghouli as they prepare for their first season at the Olympic Stadium.

ESPN FC's Italy correspondent, Ben Gladwell, contributed to this report.