A powerful explosion on Monday outside Ukraine’s parliament wounded about a dozen protesters and police during clashes over reforms giving greater powers to rebels in the east, an AFP reporter saw.

Several people who were bleeding, including police officers and apparently journalists, were lying on the ground in front of the parliament, the AFP journalist saw.

Ukraine's parliament backs draft law giving east special status

Ukraine’s parliament on Monday voted for constitutional changes to give its eastern regions a special status that it hopes will blunt their separatist drive, but divisions among pro-Western lawmakers suggested they will have a rougher ride to become law.

At a rowdy session, a total of 265 deputies voted in favour in the first reading of a “decentralisation” bill, backed by President Petro Poroshenko’s political bloc and his government - 39 more than that required to go through.

But many coalition allies, including former prime minister Yulia Tymoshenko, spoke against the changes and it is open to question whether Poroshenko will be able to whip up the necessary 300 votes for it to get through a second and final reading later this year.

Approval of legislation for special status for parts of Donetsk and Luhansk regions, which are largely controlled by Russian-backed separatists, is a major element of a peace agreement reached in Minsk, Belarus, in February.

Though a ceasefire is under pressure from sporadic shelling and shooting which government troops and rebels blame on each other, Western governments see the deal as holding out the best possible prospect for peace and are urging Ukraine to abide by the letter of the Minsk agreement.