Massachusetts August 19, 2021 6:39 am Several Shark Sightings Close Nantucket Beaches All eyes will be on the water off Nantucket after five shark sightings in one day. US & World Videos 2:39 MIT president calls for shutdown of student encampments 0:16 4 people seriously hurt after boat sinks off Cape Cod 2:35 Fallen Billerica police sergeant honored during vigil 2:09 President of MIT calls for shutting down pro-Palestinian encampments 1:00 Three dead in apparent murder-suicide in Lowell