CAIRO, Jan 6 (Reuters) - Hezbollah said it hit an Israeli observation post early on Saturday with 62 rockets as a "preliminary response" to the killing of Hamas' deputy chief last week.

Senior Hamas official Saleh al-Arouri was killed on Tuesday, Jan. 2 in an Israeli drone strike on Beirut's southern suburbs of Dahiyeh. (Reporting by Maya Gebeily; Writing by Muhammad Al Gebaly; Editing by Jan Harvey)