Lyn Walters fly fishes in the Merrymeeting River in Alton, N.H., on Oct. 8. Jim Cole/AP
Fall foliage mixes with frost in White Mountain National Forest in Twin Mountain, N.H., on Oct. 14. Jim Cole/AP
American White Birch tree trunks are seen with maple leaves in autumn in New Hampshire. NEWSCOM
Autumn trees are reflected in a lake in Cumbria, England. NEWSCOM
A couple takes in the view from an ocean lookout ledge on Mount Megunticook at Camden Hills State Park in Camden, Maine, on Oct. 12. According to the state's forest rangers, who have been tracking fall foliage for 50 years, most of the state is reaching peak colors this week. Robert F. Bukaty/AP
A sightseeing boat cruises around a small cape in Lake Chuzenji in Nikko, Japan, to view the autumn foliage on Oct. 16. Akiko Matsushita/Kyodo News/AP
A statue stands near a large maple tree changing colors on Oct. 15 at Spring Grove Cemetery in Cincinnati, Ohio.
A sugar maple tree is bright red in Allentown, Pa. NEWSCOM
Leaves change in Killarney, County Kerry, Ireland. NEWSCOM
Hikers walk amongst fall foliage at Mount Snow. Mount Snow/AP
Leaves have turned red in East Montpelier, Vt. Thanks to early summer rain, the red, orange, and gold foliage is expected to be especially vivid this season.
Autumn trees are seen in Ireland. NEWSCOM
A maple leaf falls through the air on Oct. 14 in Freeport, Maine. According to the fall foliage report from the state's Department of Conservation, peak foliage color has arrived along Maine's Downeast coast and the central interior of the state. Robert F. Bukaty/AP
People walk their dogs along a road in Waitsfield, Vt., on Oct. 9. Toby Talbot/AP
Saudi Arabia began airstrikes Wednesday against Houthi rebels in Yemen. Saudi Arabia, the United Arab Emirates, Kuwait, Qatar and Bahrain said they would answer a request from Yemeni President Abed Rabbo Mansour Hadi 'to protect Yemen.'
ByKen Dilanian, AP Intelligence Writer
Saudi Arabia began airstrikes Wednesday against Houthi rebel positions in Yemen, vowing that the Sunni kingdom will do "anything necessary" to protect its neighbor from Iran-backed Shiite rebels.