Clinton was scheduled to visit the capital, Abuja, this week alongside Baroness Patricia Scotland, the Secretary-General of the Commonwealth.
Buhari, Atiku and other presidential candidates had earlier signed the first part of the peace accord in December previous year.
The statement said: "President Clinton appreciates General Abdulsalami Abubakar and the Nigerian National Peace Committee's invitation to travel to Nigeria".
According to the statement, the President described the deaths as "needless loss of lives and an anti-climax to a highly successful outing" in the oil city that could have been averted if there was an orderly exit from the Adokiye Amiesimaka Stadium.
But a statement by Clinton's spokesman Angel Ureña regretted the former President's visit might be politicised in a way that is not in line with the goals of the committee.
Black leopard captured for first time in 100 years by Brit photographer
Black leopards are usually associated with dense forests where their dark colouration is thought to help them hide in the shadows. They were captured by Will Burrad-Lucas, 35, from Beaconsfield, Buckinghamshire, at Kenya's Laikipia Wilderness Camp last month.
Cops Say Phone Records Jussie Smollett Provided Isn't Enough To Prove Assault
The statement is the latest in a back-and-forth between Smollett and police since he reported the attack took place on January 29. Jussie has voluntarily provided his phone records from within an hour of the attack and given multiple statements to police.
Activision Blizzard Reports Sales Miss and Weak Outlook
The company's average trading volume now stands at 11.69M shares, which means that the short-interest ratio is just 5.79 days. Outperform is an analyst recommendation which means that a stock is expected to do slightly better than the market return.
In his address, following signings by more than 70 presidential candidates, the Peoples Democratic Party (PDP) candidate, Atiku, quoted former President Goodluck Jonathan, saying that his ambition was not worth the blood of any Nigerian.
The coalition, under the banner of Coalition of Political Parties in Lagos State (COPPILS), declared its support for the president at an event held in Surulere, noting that the decision was based on the president's achievements in the last three years.
"Both Guests of Honour enjoy enormous respect in Nigeria and beyond and we look forward to his counsel and advice to help Nigeria navigate through what will hopefully be a peaceful and fair electoral cycle".
Speaking further on the arrangement, Barkindo said "The National Peace Committee, mindful of the importance of peaceful elections and non-violent transfer of power has engaged various stakeholders in preparation for the 2019 General Elections".