By Jaspreet SinghAug 3 (Reuters) - Snap beat second-quarter revenue estimates on Monday, thanks to increased advertising spending during the FIFA World ‌Cup and stronger campaign activity from large advertisers in North America, ‌sending its shares up 13% in extended trading. "After several quarters of improving our ad products and go-to-market approach, we saw better momentum with large advertisers ‌in North America," CEO Evan ⁠Spiegel said. "The World Cup-related spending contributed during the quarter, alongside continued strength among small- and medium-sized businesses." It reported nearly a 7% decline in North America DAUs and about a 2% drop in Europe. Snap expects third-quarter revenue of $1.70 ‌billion to $1.74 billion, with its midpoint slightly ​above the estimate of $1.70 billion.