A warm-hearted South Korean sparked a security scare at this week's G20 summit in Seoul by trying to send a gift of pears to US President Barack Obama, Yonhap news agency reported Friday. Staff at a post office in southern Seoul on Tuesday received a parcel addressed to Obama's youngest daughter, Sasha, and intended for delivery to the summit venue. Employees on alert for suspect packages during the event investigated the contents. X-rays showed round objects resembling fruit, but wary staff still called in a SWAT team and a sniffer dog.The gift of Asian pears was returned to its elderly sender in the southern port city of Busan the same day, Yonhap said. He previously sent fruit to then-South Korean President Roh Moo-Hyun.