ANNAPOLIS – The Maryland Senate passed some of the toughest restrictions on gun ownership in the nation Thursday amid heavy resistance from Republicans who say the goal of the bill is to discourage residents from owning firearms.

The measure passed 28-19, largely along party lines, after nearly five hours of debate. The bill — which bans assault weapons and assault pistols, requires a license to buy a new handgun and restricts gun ownership for the mentally ill — is expected to pass the House. The first of two House committee hearings is scheduled for Friday.