Henrique Capriles Radonski, the runner-up in Venezuela's presidential election, announced April 16 that he had canceled a march that was planned for April 17, El Universal reported.

The opposition march set to be held in Caracas on April 17 will not be allowed, Venezuelan President-elect Nicolas Maduro said April 16, Reuters reported.

Violence in the wake of Venezuela's close presidential election has resulted in four deaths, Reuters reported April 16, citing state news agency AVN.

Tehrik-i-Taliban Pakistan, Pakistan's main Taliban grouping, said April 16 that it was not responsible for the April 15 Boston Marathon bombing, The Telegraph reported, citing AFP.

Supporters of both sides in Venezuela's recent presidential election will hold demonstrations on April 16 after authorities rejected opposition calls for a recount, Reuters reported.

The U.S. government will treat the April 15 Boston Marathon bombings as an act of terror, Reuters reported, citing an unnamed White House official. The official said any event that involves multiple explosive devices, as the incident in Boston appears to have, would be approached as an act of terrorism.

More than 115 people were injured in the April 15 Boston Marathon bombings, The Boston Globe reported. Victims of the bombings are being taken to seven local hospitals.

U.S. President Barack Obama said in a news conference about the Boston Marathon bombings that the FBI director and secretary of Homeland Security have mobilized the appropriate authorities to respond to the incident. He also said the governor of Massachusetts and city officials will have every federal resource available to care for victims of the blasts. He added that it is not yet clear who was responsible for the explosions and cautioned against jumping to conclusions, but said anyone found responsible will feel the "full weight of justice."

Cellphone service is operating in the Boston area, Verizon Wireless and Sprint Nextel officials said April 15, AP reported.