A Chinese military surveillance balloon was spotted in the Taiwan Strait, similar to the one seen in the US, along with a large-scale deployment of military aircraft and ships, said the Taiwanese Defence Ministry on Friday, raising fears of Chinese interference in the presidential election scheduled for next month in the self-governed island nation.A Chinese military surveillance balloon was spotted in the Taiwan Strait, similar to the one seen in the US, along with a large-scale deployment of military aircraft and ships, said the Taiwanese Defence Ministry on Friday, raising fears of Chinese interference in the presidential election scheduled for next month in the self-governed island nation.