AlQa'dah 10, 1434, Sep 16, 2013, SPA -- The remnants of Tropical Storm Manuel continued to dump rain on Mexico's southwestern Pacific coast while Hurricane Ingrid headed for landfall Monday on the country's opposite coast in an unusual confluence that federal authorities said had caused at least 21 deaths. The heaviest blow Sunday fell on the southern coastal state of Guerrero, where the government reported 14 confirmed deaths. State officials said people had been killed in landslides, drownings in a swollen river, and a truck crash on a mountain highway. Mexican federal civil-protection coordinator Luis Felipe Puente told reporters late Sunday that stormy weather from one or both of the two systems also caused three deaths in Hidalgo, three in Puebla, and one in Oaxaca. Getting hit by a hurricane and a tropical storm at the same time "is completely atypical" for Mexico, Mexican National Weather Service coordinator Juan Manuel Caballero said at a news conference with Puente. The Miami-based U.S. National Hurricane Center (NHC) said Ingrid, the second hurricane of the Atlantic storm season, could reach the Mexican mainland by Monday morning or early afternoon, most likely along the lightly populated coast north of the port of Tampico. Manuel came ashore as a tropical storm Sunday afternoon near the Pacific port of Manzanillo, but quickly began losing strength and was downgraded to a tropical depression late Sunday, although officials warned its rains could still cause flash floods and mudslides.