Smoke rises from an area where Shia Houthi rebels

Yemen's capital, Sanaa, is reported to be calm a day after the government and Houthi rebels signed an agreement to end days of fighting, BBC reported.
But the Houthis remain in control of the ministries and government buildings that they seized over the weekend.
They have also reportedly occupied the house of an army general who led several campaigns against the group.
A deal was struck on Sunday, hours after the prime minister quit following fierce clashes.
At least 200 have died in the fighting, health officials said, after dozens more bodies were retrieved from the streets on Monday.
Under the UN-brokered deal, a new government will be formed and the Houthis and southern separatists will nominate a new prime minister within three days.
The Houthis, who are based in the mountainous north of Yemen, have been advancing on the capital in recent weeks and staging mass protests calling for greater rights.
Hundreds of people fled the violence between the rebels and pro-government forces.