Following days of protests and strikes, Colombia's largest port city of Buenaventura exploded into violence May 19 as police opened fire on demonstrators, leaving one dead and many wounded. Marches have since continued in the city in defiance of a curfew, and scores have been detained. The protests are part of a regional campaign over harsh conditions on Colombia's Pacific coast. Buenaventura is one of South America's most important ports, yet half the city's 400,000 residents have no access to potable water. The protests began in Chocó department, up the coast from Buenaventura, under the slogan "Down with Colombia's corrupt oligarchy!" Strike leaders charge that millions of dollars in infrastructure investment for the region have disappeared. (Colombia Reports, May 21; Colombia Reports, RCN Noticias, May 20; El Espectador, El Tiempo, May 10)

The FARC rebels are on "high alert" following a May 17 ruling by Colombia's Constitutional Court, striking down congressional "fast track" authority for legislation related to the country's peace process. Under "fast track" rules, Colombia's Congress could only vote to approve or deny reforms related to implementing the peace process, rather than debating and voting on each point individually. The ruling comes less than two weeks before "D+180," the date marking 180 days from the start of the FARC demobilization process, by which time it was slated to be complete. (InSight Crime, May 19; TeleSur, May 18, Semana, May 17)

Mexico's northeastern border state of Tamaulipas—just across from Texas' Gulf Coast—has for years been engulfed in an under-reported war, as the Gulf Cartel and its rogue offspring the Zetas battle for dominance over the narco-trafficking "plaza" (zone of control). The current flare-up in the border town of Reynosa may signal a turning point. Street gun-battles have become so common in the town that authorities have instituted a color-coded alert system to warn citizens. The town has been on "red alert" repeatedly over the past days, and there are signs that the long struggle is entering an endgame.

Turkish police on May 16 arrested two sisters and deported them to Saudi Arabia after receiving a formal complaint from their family living in the kingdom. The complaint was lodged by their father in March, claiming they are ISIS loyalists. Areej and Ashwaq al-Harby pleaded for help in a video that went viral on social media as they were being taken to a Turkish police station by immigration officers. In the video, they said their abusive family has been spreading lies to get them deported. The sisters, who fled Saudi Arabia in February, were seeking for asylum in Turkey, fearing they will be criminally charged and face execution if returned to their home country. (India Today, May 17)

As the votes came in on Iran's May 19 elections, populist hardliner Ebrahim Raeesi reluctantly accepted incumbent president Hassan Rouhani's 57% victory, after a bitter campaign. The rhetoric was so heated that a week before the poll, Rouhani even challenged Raeesi, a sitting judge, to issue an arrest warrant for him. Media organizations affiliated with Iran's hardliners, like Tasnim and Fars, went to bat for Raeesi, publishing rumors about the death of Rouhani's son 20 years ago, alleging the apparent suicide was carried out with the father's personal firearm and calling for a new investigation. Meanwhile, Basiji pro-regime militia forces (which played a critical role in violence following the disputed 2009 elections) attacked a number of Rouhani campaign offices in Tehran, Mashhad, Qazvin, Babolsar and Isfahan.

US jets attacked a convoy of forces loyal to Syrian dictator Bashar Assad in southern Hama governorate May 18—ironically within one of the "deconfliction zones" established by the US and Russia. The convoy was apparently approaching the base at al-Tanf, which is used by FSA forces and US advisors. "We notified the coalition that we were being attacked by the Syrian army and Iranians in this point, and the coalition came and destroyed the advancing convoy," said Muzahem al-Saloum of the local FSA militia, Maghawir al-Thawra (also rendered Maghaweer al-Thawra). The pro-Assad militia targeted in the raid was named as Saraya al-Areen, apparently an Alawite force commanded by Iranian Revolutionary Guards. The regime was also said to be moving Hezbollah and Iraqi Shi'ite paramilitary forces into the area.

Possibly as many as 130 soldiers of the Libyan National Army, loyal to the eastern commander Khalifa Haftar, are reported to have been summarily executed after a mixed force loyal to the Tripoli-based "official" Government of National Accord took the Brak al-Shatti airbase in the country's south May 18. The attacking  troops were members of the Third Force militia from Misrata the Benghazi Defense Brigades. The mayor of Brak al-Shatti reported that most of the defenders were killed with a shot to the head, but five beheaded. "They killed everyone at the base: soldiers, cooks, cleaners," said one LNA source.

Authorities in Qingyuan, in China's Guangdong province, canceled a planned waste incinerator project after days of angry mass protests repeatedly shook the city. Clashes erupted after thousands of residents from the outlying township of Feilaixia joined students and market workers in Qingyuan's downtown area May 7. Riot police fired tear-gas and used batons to try to disperse the crowds, but protesters only re-grouped elsewhere—even after hundreds were arrested. Residents accused authorities of failing to consult with local communities in the project, which was slated for Shili village, adjacent to Feilaixia. On May 10, as protests continued to escalate, the city government announced that it had decided to drop the plan. (EJ Insight, Hong Kong, May 11; RFA, May 8)