Iran denied reports of a rocket launch at Israel after the truce was announced, the IRIB state Television and Radio company reported on its Telegram channel.
Abbas Araghchi clarified that a final decision on the cessation of hostilities would be made later.
US President Donald Trump said that Israel and Iran have agreed to a complete cease-fire in the coming hours.
The sharp deterioration of the situation in the Middle East is causing serious concern in Uzbekistan.
Iran launched a missile attack near a technology park in Beersheba, causing fires and damaging houses and cars.
According to the IRNA news agency, an explosion occurred in the industrial zone.
The Georgian Embassy in Israel reported that a shell landed near its office in a suburb of Tel Aviv.
A hospital spokeswoman urged citizens not to approach the building.
The Islamic Revolutionary Guard Corps (IRGC, elite units of the Iranian Armed Forces) said that for the first time Tehran launched a two-stage medium-range ballistic missile "Sajil" in combat conditions.
The Israeli Ministry of Tourism has organized the registration of foreign tourists wishing to leave the country due to the current situation.