April 23 (Reuters) - Britain's FTSE 100 closed a little

lower on Thursday, with declines in heavyweight financials

offset by some stocks after their corporate updates, while

markets assessed fading prospects of renewed U.S.-Iran peace

negotiations and higher oil prices.

The blue-chip FTSE 100 index closed 0.2% lower in

its fourth session of declines, while the midcap FTSE 250

fell 0.9%.

* Brent crude futures rose beyond $100 a barrel, as

Iran tightened its grip on the Strait of Hormuz and said it

would not reopen the waterway until the U.S. lifted its naval

blockade.

* The travel and leisure sector was buoyed by

a 10% gain in Domino's Pizza after it recorded a

first-quarter like-for-like sales growth of 4.5%. Pressured

airlines limited gains.

* Heavyweight banks Barclays ( BCS ) and HSBC ( HSBC ) fell

1.5% and 0.4%, respectively, the biggest drags on the index.

* Among miners, Fresnillo declined 6.4%, tracking

precious and base metals.

* Industrial miners sector closed 0.9% higher

on the back of a 4.1% gain in Anglo American, after a

report showed its Australian coal business had at least three

suitors.

* The share of British firms reporting higher costs jumped

to a record this month, signalling high input costs and rising

inflation as fallout from the Iran war weighs on the economy, a

survey showed.

* Traders are now pricing in 70% probability of the Bank of

England hiking rates in June, up from 40% last week, according

to LSEG data.

* The FTSE 100 is down 2% for the week so far and is on

track to erase nearly all gains sparked by hopes of the

U.S.-Iran ceasefire, which was announced earlier this month.

* Among other stocks, supermarket group Sainsbury

fell 3.4% after it warned that the Iran war could cloud its

outlook, mirroring concerns raised by peer Tesco ( TSCDF ).

* WH Smith ( WHTPF ) plunged 9.2% to the bottom of the FTSE

250 after the travel retailer cut its annual profit forecast and

suspended its dividend.