Students complained of dizziness, nausea and vomiting, though most only required light medical examinations. 

The International Criminal Court (ICC) last week unsealed an arrest warrant against senator Ronald Dela Rosa, accusing him along with other "co-perpetrators" of the "crime against humanity of murder".

Just one day of suspension at Samsung Electronics' semiconductor factory is expected to incur direct losses of as much as US$667.68 million, said Prime Minister Kim Min-seok.

China, which has stepped up cooperation with regional governments in recent years to crack down on scam networks, has acknowledged the geographical shift.