Transcript for Police cracking down on protesters at pro-democracy rally in Hong Kong
Time now for our index and the new clashes in Hong Kong. Police cracking down when protesters at a pro-democracy rally started marching through the streets. Police in riot gear using tear gas and then making arrests. A man described as elderly wrestled to the ground. The movement protesting Chinese leadership and promoting democracy in Hong Kong, now in its eighth month. And the crowds building at the guatemala-mexico border. Hundreds of Central American migrants reportedly aiming to cross into Mexico en masse. Officials in Guatemala say at least several thousand people have entered their country from Honduras since Wednesday. The influx testing Mexico's resolve, under pressure from the U.S., to curb undocumented migrant flows. Today's space launch passing a crucial safety milestone. Elon Musk and company celebrating the successful test of the falcon 9 rocket's in-flight abort capability, simulating an emergency 84 seconds in. You can see the rocket there blowing up. The crew-dragon capsule breaking away to land in the atlantic ocean, showing nasa space-ex can jettison astronauts to safety. If something were to go wrong. Human spaceflight may come this spring.
This transcript has been automatically generated and may not be 100% accurate.