Turkey's ruling Justice and Development (AK) Party on Tuesday officially challenged poll results in 39 districts of Istanbul, according to provincial head of the party on Tuesday.
"We have detected significant discrepancies among the tabulated results with wet signatures and stamps -- which shows the first vote record -- the final record and the total number of votes submitted to the YSK [Supreme Election Council]," Bayram Şenocak, the Istanbul provincial head of AK Party told reporters.
Şenocak said they submitted their documents at 3.00 p.m. local time (1200GMT) to contest the March 31 local election results in 39 districts of Istanbul.
"We have detected rigs and irregularities that violate the legislation and a fair election environment from the start of the voting process," Şenocak said.
March 31 local elections in Turkey
Millions of Turkish voters cast their votes nationwide Sunday in elections to choose Turkey's mayors, city council members, mukhtars (neighborhood officials) and members of elder councils for the next five years.
Turkey's AK Party is leading in 15 metropolitan municipalities (larger cities), with 24 cities claimed by AK Party candidates, according to unofficial results.
The CHP's Imamoğlu, with 48.79 percent of the votes, has a narrow lead over Yıldırım, with 48.51 percent for Istanbul mayorship.
Mansur Yavaş, the CHP's mayoral candidate in Ankara, is leading with 50.91 percent of votes, according to unofficial results, with the AK Party's Mehmet Özhaseki trailing at 47.1 percent.
