“After attracting a great deal of attention to a fundamental ethical subject, we will invite African athletes, contrary to what was announced,” Fabio Carini, organiser of the race, said.
“I acknowledge that we should have raised the issue differently and with a different timing and that's what we will do.
“I regret the reactions to this decision and apologise to those people who have felt offended.”
Carini told Italian daily La Repubblica that the move only to allow European entries was to make a stand against the exploitation of African runners.
“This year we have decided only to take European athletes to make the point that measures must be taken to regulate what is currently a trade in high-value African athletes, who are purely and simply exploited, which is something we can no longer accept,” he said.
Interviewed on Rai Television, Carini said athletes were “under-paid and treated indecently in relation to their sporting value”.
However, the controversial decision was described by critics as racist.
An Italian member of the European Parliament, Isabella de Monte, said the move was “serious and unworthy”.
“We are preventing professionals taking part in a race because they come from Africa... The situation is in the process of slipping away from us and we are returning to the dark days,” the MEP for the Progressive Alliance of Socialists and Democrats said.
“The only way to react to this type of decision is outrage.
“Sport is about sharing, unifying, equality, loyalty and respect, that’s what we teach our children.
“But what example are we giving them with this type of decision?”
Later Saturday, the Italian athletics federation (Fidal) said they were investigating the decision.
“The Italian Athletics Federation announces that its authorities have immediately opened an investigation to examine the facts and possible violations of its standards and regulations committed by affiliated clubs or licensees,” Fidal said in a statement.
Shortly after, Carini issued a statement to Italian media, saying African athletes would be invited to participate in the event after all.
However, he still insisted that he had raised the issue of exploitation that “does exist and is often ignored by organisers of running events”.
