Saudi-led coalition airstrikes in Yemen are on hold Monday at the start of a five-day humanitarian truce, although intense ground fighting continues in some areas after Houthi rebels rejected the cease-fire.
Rebel attacks were reported Monday in parts of the south of the country.
The coalition that has been fighting the Iranian-allied Houthi Shi'ite rebels with air attacks for the past four months declared the temporary truce to allow badly needed emergency supplies into Yemen.
On Sunday, Houthi chief Abdel-Malek al-Houthi said a cease-fire would only benefit Islamic State and al-Qaida militants. "The battle goes on and the war is not over," al-Houthi was quoted as saying on his group's Twitter account.