Russia on Wednesday urged “restraint” in the Iran war after Washington and Tehran traded new strikes in the worst escalation since their April 8 ceasefire.For all the latest headlines, follow our Google News channel online or via the app.“We are extremely concerned about the new round of US-Iranian armed confrontation, which began with the unprovoked US-Israeli aggression against the Islamic Republic of Iran. We call on both sides to exercise restraint and to immediately cease military attacks,” Russian Foreign Ministry spokeswoman Maria Zakharova told reporters.China for its part said Wednesday it was “deeply concerned” over the conflict in the Middle East and urged against escalation after Washington carried out strikes on Iran over the downing of a US helicopter.“Various relevant parties should maintain calm and exercise restraint, stop intensifying the conflict and escalating the situation, take concrete measures to ease and cool down tensions,” Chinese foreign ministry spokesman Lin Jian told a news briefing.Read more: US military says ‘completed’ strikes against Iran