Today in Pictures: April 29

Police in riot gear hold back protesters outside the Hyatt hotel where Republican presidential candidate Donald Trump was set to speak at the California GOP convention in Burlingame, Calif., on April 29, 2016.

Members of a veteran's motorcycle club hold flags outside a memorial service for U.S. Marine Cpl. Christopher Orlando at St. Paul's Catholic Church in Hingham, Mass., on, April 29. Orlando and 11 other Marines died Jan. 14 in a midair collision of two helicopters during a nighttime training mission off Hawaii's coast.

Orthodox Christian pilgrims from Abkhazia walk along the Via Dolorosa (Way of Suffering) during Good Friday procession in the Old City of Jerusalem on April 29. Thousands of pilgrims took part in processions along the route where, according to tradition, Jesus carried the cross during his last days.

A burned-out house is surrounded by charred ground and trees following a natural gas explosion at a pipeline complex in Salem Township, Pa., on April 29. The explosion caused flames to shoot above nearby treetops in the largely rural area, about 30 miles east of Pittsburgh, and prompted authorities to evacuate businesses nearby.

Syrian men carry a body on a stretcher past the rubble of destroyed buildings following a reported airstrike on the rebel-held neighborhood of Al-Qatarji in the northern Syrian city of Aleppo on April 29. Fresh bombardments shook Syria's second city Aleppo, severely damaging a local clinic as outrage grows over an earlier airstrike that destroyed a hospital. The northern city has been battered by a week of airstrikes, rocket fire, and shelling, leaving more than 200 civilians dead across the metropolis. The renewed violence has all but collapsed a fragile ceasefire deal that had brought an unprecedented lull in fighting since February 27.

Pakistani youths cool off in a stream during hot weather on the outskirts of Islamabad on April 29. 

Babies, held by amateur sumo wrestlers, compete for the loudest crying during the Nakizumo, or crying baby contest, at Sensoji Temple in Tokyo. The Nakizumo is a traditional event, where babies, accompanied by sumo wrestlers, face off in a contest to determine who can cry the loudest and longest. The event is believed to bring good health to the contestants. Almost 100 babies attended the event this year.

Pope Francis meets Vice President Joe Biden in Paul VI hall at the Vatican.

A Syrian man reacts as he stands on blood stains at a site hit by airstrikes in the rebel-held al-Fardous district of Aleppo.

French riot police use tear gas to clear the Place de la Republique in Paris during a protest by the Nuit Debout, or "Up All Night" movement, who have been rallying against the French government's proposed labor reforms.

Thursday in Pictures: April 28