As May Day preparations intensified, authorities implemented extensive security measures in Istanbul, with numerous metro stations closing and roads blocked. President Erdoğan demanded CHP explain why "jammer" devices were reportedly used at meetings, questioning "what they were hiding behind the tapes" - referencing allegations about hotel security cameras covered during İmamoğlu's meetings.

The Istanbul Municipality corruption investigation expanded with prosecutors requesting documents from İSKİ, İSFALT, and KİPTAŞ. Security managers of the hotel where cameras were allegedly covered were detained but later released.

İmamoğlu shared his first photo from prison during a family visit, while CHP leader Özel held his third rally in Başakşehir, a former AKP stronghold, calling it "the people's fortress now."

On the economic front, Borsa Istanbul faced a manipulation investigation with 15 detention orders. Internationally, Turkey called for de-escalation between India and Pakistan as tensions rose, with India reportedly closing its airspace.