A panel of legal experts was set up by the government after protests when five men were cleared of raping a teenage woman. Judges ruled that the so-called "wolf pack" gang had not assaulted her.

The panel will recommend that the maximum jail term for rape should remain 15 years, Spanish media report.

The proposal is still being worked on.

On 5 December judges in the northern Navarre region upheld the decision to clear the five men in the case known as La manada (wolf pack). The case will now go to the Supreme Court.

According to their ruling, the 18-year-old woman was not assaulted as no intimidation or violence was involved. The men had had unprotected sex with her in a basement during Pamplona's bull-running festival in July 2016.

A rally in Bilbao against the 5 December ruling: "It's Not Abuse, It's Rape. We Believe You" says the banner

Under the current law, proof of violence or intimidation has to be presented for a case to be treated as "rape".

The new proposal, quoted by Spain's Europa Press news agency, calls for the "maximum penalty" in cases involving violence or intimidation against a victim "in degrading circumstances", or when the victim is assaulted by two or more people.

The 15-year maximum jail term for rape is the same as the maximum term for murder in Spain.

The legal changes are also more specific about the types of sexual assault considered to be the worst.

They include cases where a victim is especially vulnerable, for example assaulted by a parent or other authority figure, or where a weapon is used against the victim.

Similarly, if a perpetrator intoxicates the victim with drugs or alcohol it will be considered an especially grave crime.