 A preliminary report by OSCE observers called the vote generally free and fair.However, one member of the OSCE observation team expressed concerns over that conclusion and said that she and a number of other team members feel that there had been some manipulation, but they were unable to find any proof.On April 6, 2009, several NGOs and opposition parties organized a protest in Chișinău, gathering a crowd of about 15,000 with the help of social network sites such as Twitter and Facebook.