A Chinese Foreign Ministry spokesperson on Tuesday called on relevant parties to reach an immediate ceasefire and an end to hostilities and return to peace and dialogue as soon as possible, after the US claimed to postpone planned strikes against Iran's power plants for negotiations.

Spokesperson Lin Jian made the remarks at a daily press briefing in response to a related query.

Lin said a protracted war serves no one's interests, while a ceasefire and dialogue are the only way out.

"China is gravely concerned about the continued escalation and the spillover of the current situation, which has dealt blows to regional and global peace and stability," Lin added.