A plane drops fire retardant on a burning ridge as the sun sets behind it and a wildfire burns west of Loveland, Colo., on Sunday. Ed Andrieski/AP
Dogs stand on the edge of a window in Ljubljana's neighborhood in Bezigrad, Slovenia, on Monday. Bor Slana/Reuters
A villager climbs up a date palm tree in Riyadh, Saudi Arabia. Fahad Shadeed/Reuters
A Christie's employee poses for photographs behind a Roman bronze helmet at the auction house's offices in London, on Monday. The helmet, found with the use of a metal detector, is topped with a griffin. The face mask features perfectly arched eyebrows and an ancient gaze, framed by curls. Considered an extraordinary example of Roman metalwork, the mask was discovered in a field in northwestern England by a treasure-hunter armed with a metal detector. It is to be offered at auction Oct. 7 by Christie's, with a guide price of 200,000 to 300,000 pounds ($242,000 to $363,000) Matt Dunham/AP
The interior of a tour bus following a fire in Tillamook, Ore., is seen along an Oregon highway on Sunday. The bus had been traveling when it reportedly caught fire, injuring eight people. State police said the cause of the fire appeared to be accidental. Oregon State Police/AP
A Palestinian boy walks across a stream of water, backdropped by the Mediterranean Sea, on a beach on the outskirts of Gaza City, on Monday. Israel says it is allowing the largest shipment of construction materials into Gaza since its deadly raid on an international flotilla in May. Israeli military spokesman Guy Inbar says 250 tons of pipes, iron, and other materials began to enter Monday to upgrade a Gaza City waste treatment plant. Gaza water official Maher Najjar says the upgraded plant will be able to treat 20 million gallons of waste a day, nearly double the current level. Hatem Moussa/AP
People cross Havana's El Malecon seafront boulevard on Sunday in Cuba. Desmond Boylan/Reuters
Taj Burrow from Australia competes in his Round 1 heat at the Hurley Pro Lower Trestles surfing competition in San Clemente, Calif., on Sunday. Sean Rowland/Reuters
Mexican marines escort Sergio Villarreal (c.) as weapons confiscated during his capture are displayed during a news conference at the Navy School in Mexico City on Monday. Villarreal, dubbed "El Grande," was a leading member of the Beltran Leyva cartel and was captured by the marines in an operation in central Mexico, two local news stations reported. Eliana Aponte/Reuters
An Indian paramilitary soldier keeps vigil atop an armored vehicle during a curfew on the outskirts of Srinagar, India, on Sunday. Police in Indian-administered Kashmir formally accused a key separatist leader of treason Sunday for allegedly inciting violence after participants in a massive anti-India rally torched government offices. Altaf Qadri/AP
A young Kashmiri boy shouts slogans during a protest on the outskirts of Srinagar, India, on Monday. Indian forces battled Kashmiri protesters in the streets of the disputed territory Monday in demonstrations fueled in part by a report of the Quran being desecrated in the United States. Altaf Qadri/AP
Supporters of the parliamentary election candidate Baktish Seuiwash hold his posters as they wait for him to campaign at a neighborhood in Kabul, Afghanistan, on Monday. Afghanistan will hold elections on Sept. 18. Ahmad Massoud/AP
The suicide bomber killed at least 80 people who were taking part in a peaceful demonstration in Kabul.
ByLynne O'Donnel, Associated Press
Afghanistan marked a national day of mourning on Sunday, a day after a suicide bomber killed at least 80 people who were taking part in a peaceful demonstration in Kabul. The attack was claimed by the Islamic State group.