What was the initial punishment that pharaoh imposed upon Israelites for asking to leave?

The initial punishment that Pharaoh imposed upon the Israelites for asking to leave was to increase the amount of bricks they had to make. Previously, the Israelites were required to make a certain quota of bricks using their own straw. However, after they asked to leave Egypt, Pharaoh commanded the taskmasters to no longer give the Israelites straw but to make them gather and collect straw themselves. This made it even harder for the Israelites to complete their assigned tasks, and they were severely punished if they failed to meet the quota.