An Israeli delegation’s visit scheduled for this week has been postponed, Deputy Prime Minister Bülent Arınç said, hours after the Mavi Marmara victims declared that they would not withdraw their lawsuits against Israeli commanders for compensation.

The visit previously scheduled for April 11-12 was delayed until April 21, Hurriyet Daily News reported.

The frozen relationship between Turkey and Israel, after the latter’s deadly 2010 attack that killed nine Turkish pro-Palestinian activists on Gaza-bound flotilla, has recently seen a thaw after the Israeli Prime Minister apologized for the raid. Compensation to the victims of the Israeli attack on the Mavi Marmara ship and Prime Minister Benjamin Netanyahu’s apology to his Turkish counterpart Erdoğan were Turkey’s core conditions for normalizing ties between the once strong allies.

Erdogan accepted the apology “in the name of the Turkish people” but said the country’s future relationship with Israel would depend on the Jewish state.

However, raid victims insisted on legal action against Israeli soldiers who conducted the attack. Musa Coaş, one of the activists who was on board the Mavi Marmara, said they would continue their cases and it was unacceptable to withdraw the cases in return for compensation.