By Jana Choukeir, Enas Alashray and Phil Stewart WASHINGTON/DUBAI, May 28 (Reuters) - The United States and Iran have reached an outline agreement to extend their ceasefire pending the approval of President Donald Trump,

Iran's Revolutionary Guards ​said on Thursday they responded to the attacks by targeting a US airbase early in the morning. The ​IRGC did not say ‌where ⁠the base is.

As Iran accuses the U.S. of a "grave violation" of the fragile ceasefire, Rubio says a deal is still possible despite the latest clash.

The White ⁠House declined to comment. The Trump administration has several times said a deal to ​end the fighting was close, only to have Iran dispute or downplay the ​claims.

Anti-ship missiles developed and used by Iran are believed to have been used in an attack against a South Korean vessel in the Strait of Hormuz earlier this month, the foreign ministry said Wednesday.

The U.S. military shot down four Iranian one-way attack drones and struck a ground control station inside Iran on Wednesday that the military assessed as presenting a direct threat to U.S. forces and commercial shipping,

Israel says it will intensify attacks against Hezbollah in Lebanon and U.S. military struck Iranian boats and missile launch sites as envoys continued negotiations for a deal that would end the three-month war.

Iran launched attacks on the UAE and tankers in the Strait of Hormuz while the U.S. destroyed Iranian boats "that attempted to interfere" with Project Freedom.

By Heejin Kim and Joyce Lee SEOUL, May 27 (Reuters) - An Iranian anti-ship missile was likely involved in an attack on a cargo ship operated by local shipper HMM in the Strait of Hormuz earlier this month,